lost 50 pound weight; feeling like dying everyday and gonna kill him; fair tremor in his right hand initially and now starting to happen in his left hand as well; the needle got separated and some of the content of the dose got sprayed on his face.; the needle got separated and some of the content of the dose got sprayed on his face.; very sick/feeling like "sick as a dog"; severe constipation; explosive diarrhea multiple times a day with  no ability to control it,; pharmacist prepared a second dose of the missed amount and gave him a second dose of that to complete the first dose on that day /1 st dose of the Moderna COVID-19 Vaccine on 6Apr2021.; This spontaneous case was reported by a consumer and describes the occurrence of ILLNESS (very sick/feeling like "sick as a dog"), DIARRHOEA (explosive diarrhea multiple times a day with  no ability to control it,), WEIGHT DECREASED (lost 50 pound weight), FEELING ABNORMAL (feeling like dying everyday and gonna kill him) and TREMOR (fair tremor in his right hand initially and now starting to happen in his left hand as well) in a 64-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 028AZ1A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Degenerative disc disease on 14-Jul-1994. Concomitant products included LEVOCETIRIZINE DIHYDROCHLORIDE and MONTELUKAST SODIUM for Allergy and Sinusitis NOS, BACLOFEN and HYDROMORPHONE for Degenerative disc disease, FAMOTIDINE for GERD.    On 06-Apr-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 06-Apr-2021, the patient experienced INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (pharmacist prepared a second dose of the missed amount and gave him a second dose of that to complete the first dose on that day /1 st dose of the Moderna COVID-19 Vaccine on 6Apr2021.). On 08-Apr-2021, the patient experienced DIARRHOEA (explosive diarrhea multiple times a day with  no ability to control it,). On an unknown date, the patient experienced ILLNESS (very sick/feeling like "sick as a dog"), WEIGHT DECREASED (lost 50 pound weight), FEELING ABNORMAL (feeling like dying everyday and gonna kill him), TREMOR (fair tremor in his right hand initially and now starting to happen in his left hand as well), DEVICE CONNECTION ISSUE (the needle got separated and some of the content of the dose got sprayed on his face.), UNDERDOSE (the needle got separated and some of the content of the dose got sprayed on his face.) and CONSTIPATION (severe constipation). The patient was treated with LOPERAMIDE at an unspecified dose and frequency. On 06-Apr-2021, INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (pharmacist prepared a second dose of the missed amount and gave him a second dose of that to complete the first dose on that day /1 st dose of the Moderna COVID-19 Vaccine on 6Apr2021.) had resolved. At the time of the report, ILLNESS (very sick/feeling like "sick as a dog"), WEIGHT DECREASED (lost 50 pound weight), FEELING ABNORMAL (feeling like dying everyday and gonna kill him), TREMOR (fair tremor in his right hand initially and now starting to happen in his left hand as well), DEVICE CONNECTION ISSUE (the needle got separated and some of the content of the dose got sprayed on his face.) and UNDERDOSE (the needle got separated and some of the content of the dose got sprayed on his face.) outcome was unknown and DIARRHOEA (explosive diarrhea multiple times a day with  no ability to control it,) had not resolved.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.   For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter considered DIARRHOEA (explosive diarrhea multiple times a day with  no ability to control it,) to be possibly related. No further causality assessments were provided for ILLNESS (very sick/feeling like "sick as a dog"), WEIGHT DECREASED (lost 50 pound weight), FEELING ABNORMAL (feeling like dying everyday and gonna kill him), TREMOR (fair tremor in his right hand initially and now starting to happen in his left hand as well), DEVICE CONNECTION ISSUE (the needle got separated and some of the content of the dose got sprayed on his face.), UNDERDOSE (the needle got separated and some of the content of the dose got sprayed on his face.), INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (pharmacist prepared a second dose of the missed amount and gave him a second dose of that to complete the first dose on that day /1 st dose of the Moderna COVID-19 Vaccine on 6Apr2021.) and CONSTIPATION (severe constipation).    Most recent FOLLOW-UP information incorporated above includes: On 24-Jul-2021: Addition of Patient details,Concomitant medications, Relevant medical history, Outcome of event Diarrhea updated unknown to not recovered.