Same day - pain in left arm at injection site, headache, flushed, scratchy throat/ throat tightening (difficulty swallowing)/exhaustion. Within 48 hours, same symptoms, plus dough developed, leg cramps in both legs (calves and then thighs); tight leg muscles.  Loss of appetite (unable to eat anything first two weeks; very limited appetite/ability to eat anything for the next two weeks.). Over the first month, symptoms above continued on-again/off again, the muscles cramps worsened and spread; had on-going cramps in both legs and arms. Started experiencing pin and needle sensations in both legs, feet, hands, and arms. Because my symptoms were on-going I canceled my appointment for my second dose on October 15 and instead went to see my primary doctor. (Dr.) to discuss my symptoms and concerns.  I was advised to hold off getting my second dose, was given a medical note indicating such so i would not be fired from my job, and blood work/follow-up appointment was scheduled. 10/20/21 - initial blood work was performed at Lab. 10/27/21 - follow-up appointment with primary doctor; blood work showed auto-immune issues. Received referral to rheumatologist and prescribed Prednisone. Took one dose on morning of 10/28 - could not sleep that night (itchy/cramps/pins and needles/flushed) work on Friday morning covered with hives on chest/face and very flushed. Stopped Prednisone; took Benadryl over weekend. 11/5/21 - Overall symptoms continued to get worse over the week; reported on-going medical issues to Workmen's Comp  11/7/21 - Late Saturday night, night, pins and needles and muscles cramps intensified, throat tightened causing issues with swallowing, felt very off; then both legs started shaking/trembling and I was unable to stop/control them. Ended up going to ER very early on Sunday morning. Not admitted; given and prescribed additional medication. Next month continued with same on-going symptoms, now including overall weakness, random flushing of face (across nose/cheeks; occasional light hives) and episodes of legs shaking (not as severe or as long of duration as first episode). Difficulty with walking and any physical activity; normal activities (grocery shopping/cooking/etc.) leave me exhausted. (I was very physically active prior to the first COVID injection).  First appointment with Rheumatologist was on December 2. More blood work ordered;  January 2022 was next appointment; same results with blood work; received referral to neurologist. Saw neurologist then had follow-up appointment for EMG which came out normal.  On-going appointments with rheumatologist and on-going medication (Gabapentin/Methylcarbonal). So, 11 months later  - on-going issues include muscle cramps/weakness/tightness (daily - still both arms and legs; legs are worse then arms normally); pins and needle sensations (mostly arms/legs[daily]; but will also have issues with hands/feed (at least weekly; can be more often),  throat tightening/difficulty swallowing (occasional), walking - uncomfortable/difficult for any extended time), easily exhausted/ still limited physical activity, less often now, but will have issues with being flushed across face and leg shaking/trembling (about once a week). On-going pain in my left arm muscle where I received the shot. The pain is bad enough to wake me up at night if I roll over on that arm, also makes some arm movement (e.g., straight up above head) very uncomfortable.    Summary of appointment/treatement dates: 10/15/2021 - Med (Primary Dr.) 10/20/2021 Blood work - Lab 10/27/2021 - Med (Primary Dr.)  11/5/2021 - Reported to Workmens Comp 11/7/2021 - ER visit - Hospital 11/11/2021 - follow-up appointment with Workmens Comp doctor 12/2/2021 Rheumatology  12/10/2021 Blood work - Lab 1/4/2022 Rheumatology  1/25/2022 Neuro& EMG Consultants 2/8/2022 Neuro& EMG Consultants 3/7/2022 Rheumatology  5/6/2022 Blood work - Lab 6/6/2022 Rheumatology   9/12/2022 - Next scheduled appointment for rheumatologist.