Please edit the below snippet to return AddDate value from the table M_CKGrossMotor table in addition with Id, Appointment ID ... and such in response.
Snippet:
@app.route('/submitGrossMotorForm', methods=['GET','POST'])
def submitGrossMotorForm():

    session=Session()
    try:

        if(request.method == "POST"):
            if('Authorization' in request.headers):
                token= request.headers.get('Authorization')

                if not token:
                    return jsonify({'MSG':'Token is missing'})
                data = jwt.decode(token,app.config['SECRET_KEY'], algorithms=['HS256', ])
                if(data):
                    request_json = request.get_json()
                    question1 = request_json.get('question1')
                    question2 = request_json.get('question2')
                    question3 = request_json.get('question3')
                    question4 = request_json.get('question4')
                    question5 = request_json.get('question5')
                    question6 = request_json.get('question6')
                    question7 = request_json.get('question7')
                    question8 = request_json.get('question8')
                    question9 = request_json.get('question9')
                    question10 = request_json.get('question10')
                    question11 = request_json.get('question11')
                    question12 = request_json.get('question12')
                    question13 = request_json.get('question13')
                    question14 = request_json.get('question14')
                    question15 = request_json.get('question15')
                    question16 = request_json.get('question16')
                    question17 = request_json.get('question17')
                    question18 = request_json.get('question18')
                    question19 = request_json.get('question19')
                    question20 = request_json.get('question20')
                    question21 = request_json.get('question21')
                    question22 = request_json.get('question22')
                    question23 = request_json.get('question23')
                    question24 = request_json.get('question24')
                    question25 = request_json.get('question25')
                    question26 = request_json.get('question26')
                    question27 = request_json.get('question27')
                    question28 = request_json.get('question28')
                    question29 = request_json.get('question29')
                    question30 = request_json.get('question30')
                    question31 = request_json.get('question31')
                    question32 = request_json.get('question32')
                    question33 = request_json.get('question33')
                    question34 = request_json.get('question34')
                    question4B = request_json.get('question4B')
                    question4C = request_json.get('question4C')
                    
                    grossmotor3yes = request_json.get('grossMotor0To3Yes')
                    grossmotor3no = request_json.get('grossMotor0To3No')
                    grossmotor6yes = request_json.get('grossMotor3To6Yes')
                    grossmotor6no = request_json.get('grossMotor3To6No')
                    grossmotor9yes = request_json.get('grossMotor6To9Yes')
                    grossmotor9no = request_json.get('grossMotor6To9No')
                    grossmotor12yes = request_json.get('grossMotor9To12Yes')
                    grossmotor12no = request_json.get('grossMotor9To12No')
                    grossmotor18yes = request_json.get('grossMotor12To18Yes')
                    grossmotor18no = request_json.get('grossMotor12To18No')
                    grossmotor24yes = request_json.get('grossMotor18To24Yes')
                    grossmotor24no = request_json.get('grossMotor18To24No')
                    grossmotor30yes = request_json.get('grossMotor24To30Yes')
                    grossmotor30no = request_json.get('grossMotor24To30No')
                    grossmotor36yes = request_json.get('grossMotor30To36Yes')
                    grossmotor36no = request_json.get('grossMotor30To36No')
                    grossmotor42yes = request_json.get('grossMotor36To42Yes')
                    grossmotor42no = request_json.get('grossMotor36To42No')
                    grossmotor48yes = request_json.get('grossMotor42To48Yes')
                    grossmotor48no = request_json.get('grossMotor42To48No')
                    grossmotor54yes = request_json.get('grossMotor48To54Yes')
                    grossmotor54no = request_json.get('grossMotor48To54No')
                    grossmotor60yes = request_json.get('grossMotor54To60Yes')
                    grossmotor60no = request_json.get('grossMotor54To60No')


                    Aid = request_json.get('Aid')
                    PID = request_json.get('pid')
                    Id = request_json.get('Id')

                    Insert=Model.models.Application.M_CKGrossmotor()
                    Insert.M_Patient_MPID=PID
                    Insert.M_AppointmentID=Aid
                    Insert.canlifttheheadup=question1
                    Insert.triestostabilizehead=question2
                    Insert.lessroundingofback=question3
                    Insert.canstabiliseheadfully=question4
                    Insert.Rollsfromfronttoback=question5
                    Insert.Cansitwithoutsupport=question6
                    Insert.Bearswholebodyweightonlegs=question7
                    Insert.Standswellwitharmshigh=question8
                    Insert.Cruisesfurnitureusinonehand=question9
                    Insert.Walkswithonehandheld=question10
                    Insert.Standsononefootwithslight=question11
                    Insert.Seatsselfinsmallchair=question12
                    Insert.Throwsballwhilestanding=question13
                    Insert.Walksdownstairsholdingrail=question14
                    Insert.Kicksballwithoutdemonstration=question15
                    Insert.Squatsinplay=question16
                    Insert.Walkupstairswithrail=question17
                    Insert.Jumpsinplace=question18
                    Insert.Standswithbothfeetonbalance=question19
                    Insert.Balancesononefootfor3seconds=question20
                    Insert.Goesupstairsnorails=question21
                    Insert.Pedalstricycle=question22
                    Insert.Balancesononefoot4to8second=question23
                    Insert.Hopononefoottwotothreetimes=question24
                    Insert.Standingbroadjump1to2feet=question25
                    Insert.Gallops=question26
                    Insert.Throwsballoverhand10feet=question27
                    Insert.Catchesbouncedball=question28
                    Insert.Walksdownstairswithrail=question29
                    Insert.Balanceononefoot8seconds=question30
                    Insert.Hopononefoot15times=question31
                    Insert.Canskip=question32
                    Insert.Runbroadjumpapproximately2to3feet=question33
                    Insert.Walksbackwardheeltoe=question34
                    Insert.Rollsfrombacktofront=question4B
                    Insert.Sittingsupportstarts=question4C
                    
                    Insert.grossmotor3yes=grossmotor3yes
                    Insert.grossmotor3no =grossmotor3no 
                    Insert.grossmotor6yes=grossmotor6yes
                    Insert.grossmotor6no=grossmotor6no
                    Insert.grossmotor9yes=grossmotor9yes
                    Insert.grossmotor9no=grossmotor9no
                    Insert.grossmotor12yes=grossmotor12yes
                    Insert.grossmotor12no=grossmotor12no
                    Insert.grossmotor18yes=grossmotor18yes
                    Insert.grossmotor18no=grossmotor18no
                    Insert.grossmotor24yes=grossmotor24yes
                    Insert.grossmotor24no=grossmotor24no
                    Insert.grossmotor30yes=grossmotor30yes
                    Insert.grossmotor30no=grossmotor30no
                    Insert.grossmotor36yes=grossmotor36yes
                    Insert.grossmotor36no=grossmotor36no
                    Insert.grossmotor42yes=grossmotor42yes
                    Insert.grossmotor42no=grossmotor42no
                    Insert.grossmotor48yes=grossmotor48yes
                    Insert.grossmotor48no=grossmotor48no
                    Insert.grossmotor54yes=grossmotor54yes
                    Insert.grossmotor54no=grossmotor54no
                    Insert.grossmotor60yes=grossmotor60yes
                    Insert.grossmotor60no=grossmotor60no
                    
                    Insert.AddDate = datetime.datetime.now()
                    Insert.AddIP= flask.request.remote_addr
                    session.add(Insert)
                    session.commit()
                    return jsonify({'msg':'CK Developmental Added Successfully'})
                else:
                    return jsonify({'err':'Token is expired'})
            else:
                return jsonify({'err':'Please Login'})

    except Exception as e:
        return jsonify({'err':str(e)})
    finally:
        session.close()