I received 2 doses of Moderna vaccine, from pharmacy due to the mandate.  Shortly after, approximately a month after the second dose, I realized an increase in my body weight, which was unlike me, since I have always been very active, exercising 6x/week and also ate a healthy diet, and have struggled with gaining weight in the past. By December of 2021, after having received the 2nd dose on October 11th 2021, the realized that I gained around 20 lbs, by January I had gained another 10lbs and in the following 3 months, another 20lbs. My health also began declining. I was riddled with fatigue and pain around Feb 2022, which worsened in the coming months, leading to several autoimmune disease diagnosis. First dose was administered on 11 OCT 21, and second dose 11 SEP 21. I have seen numerous specialists trying to uncover the reason for this sudden, drastic weight gain, and none of them have been able to uncover a valid reason. I was also subsequently diagnosed with 3 auto immune diseases since, after having no one in my family with a history of auto-immune disease. My life has changed significantly, and also career trajectory, as my fitness for duty, is being investigated, due to these new diagnoses and significant lifestyle and physical changes. I no longer meet the weight or fitness requirements. Prior to this, I was full of energy, made sure I ate well and lived a very active lifestyle. Taking care of me was not something that was not forced, but something I took pride in. I was so full of energy, and so strong, that I would have to set a timer to make myself leave the gym, because I enjoyed it  so much. The physical changes were so drastic that my family and friends were shocked to see how much weight I had gained so quickly. My PCM was also concerned, and was the one who initiated the referrals to these specialists to uncover the cause, as this was impacting my entire life- family, social and career; which could ultimately cause me to lose my career due to not being able to meet fitness requirement, ability and also unexpected daily task limitations. Through my pain, with the autoimmune conditions, I forced myself to workout consistently, hoping that I would one day wake up and be back to normal. However it has been a year and a half with no progress. I have not lost any weight during this time, but have gained.  I even sought guidance from 2 Dietitians, had multiple tests done, calorie intake calculated and monitored, and then it was surmised that there is something else going on, because I am eating less (the lowest calories I can and remain healthy), incorporating more cardiovascular training (something in the past which I did infrequently, because I lost weight extremely fast with cardio), and based on metabolism tests conducted shortly after the weight gain,  mine was faster than the fastest average female. With all of this combined, she surmised that I should be losing weight, but had not even lost 1/2lb in 6 months and instead continually gained. Combined I have gained a total of around 50lbs, and have not been able to lose any. Prior to vaccination, I maintained was 130-135lbs, I am now 186lbs. When I noticed the initial weight increase, I was around 145-150 lbs. Combined, I have seen approximately 20 specialists to uncover the reason for this sudden change, and assist in managing these new auto immune conditions. I have searched the internet countless times, to discover if others have experienced a significant change in their weight after vaccination, and I have found that persons have posted the same inquiry on forums. It appears that there are others out there, who have experienced similar outcomes. I do believe that one impeding factor, on persons recognizing the reason for their weight increase, might be due to the fact that during this time, persons were working from home, or their lifestyles had change. Mine however, was glaring noticeable because my lifestyle did not change due to the nature of my job, and I had been exercising and cooking for myself for the past 15 years, and I never struggled with unwanted or unexpected weight gain. Here are some of the other vaccine details from the provider. MODERNA COVID (12Y UP)VAC(EUA) (COVID-19 vaccine, mRNA, cx-024414, LNP-S (Moderna)/PF), 100MCG/0.5, VIAL, INTRAMUSC, MODERNA US, INC, 7 ml VIAL.