I was not feeling good; cold sweats; the cramp started from dehydration in every muscle of my body; could not walk; muscles cramps; He lost 15 pounds in 3 weeks or less since he has had the vaccine; shaking; Nauseated; I got sick; Vomiting; Muscles were dehydrated and had cramps in fingers and toes cramped with his left arm going straight out.; Muscles were dehydrated and had cramps in fingers and toes cramped with his left arm going straight out.; Muscles were dehydrated and had cramps in fingers and toes cramped with his left arm going straight out.; Diarrhea; Cold, sweaty feeling; Cold, sweaty feeling; Dizziness; Fell off a ladder; both legs feel weak/Arms weak; anxiety worse; This is a spontaneous report from a contactable consumer (patient). A 66-years-old male patient received first dose of bnt162b2 (PFIZER- BIONTECH COVID- 19 VACCINE, Solution for injection, Batch/Lot Number: EP7533), intramuscular, administered in arm right on 03Apr2021 as 1st dose, single dose for covid-19 immunisation. Medical history included gastroparesis from Jan2010 to an unknown date, helicobacter pylori from Aug2020 to an unknown date and Cdiff. The patient's concomitant medications were not reported. On an unknown date, the patient experienced not feeling good, cold sweats, the cramp started from dehydration in every muscle of his body, could not walk, muscles cramps, lost 15 pounds in 3 weeks or less since he has had the vaccine, shaking and nauseated. On 03Apr2021, the patient experienced anxiety worse. On 04Apr2021, the patient fell off a ladder and both legs feel weak/arms weak. On 05Apr2021, the patient experienced, cold, sweaty feeling and dizziness. On 06Apr2021, the patient experienced, vomiting, muscles were dehydrated and had cramps in fingers and toes cramped with his left arm going straight out and diarrhea. On 06May2021, the patient got sick. Patient stated: he got sick on 06May2021 in the middle of the night, at 2:30 AM and he layed on the floor for almost 6 hours vomiting and finally he didn't have anything left, then the cramp started from dehydration in every muscle of my body, luckily not his heart, and that was with cold sweats, he could not get warm he kept trying he did everything. Also it was so uncontrollable that he could not walk either, the muscles cramps, he finally did - he fought that at 66 years of age, which sounds young but he was old, that he couldn't control number 2 either, because it was fully out of control and peeing, everything was just going out of his body, he could not stop it, there was no blood. He didn't know where he was. He finally fell asleep. He got up after that, got my cane and got into the kitchen I got a Water with nutrients and vitamins, that night he went to bed, everything was back to normal he was still having cold sweats and then eventually that went away, and he was not feeling well until the first week of May, not feeling himself. He received second dose late because he live by himself, he getting dizzy he need to go back and sit down, this is weird, he already disabled, he been disabled like this he forgetting things like this too, his daughter was a Nurse and told him he forgetting things, his mouth was getting dry ,one more question that's all how long? he have nausea a lot, he is on on medication for nausea - it crosses blood-brain barrier and he don't like it, but That's not even working anymore. How long does this nausea effect, what he felt wasn't all the time but now it's all the time, it's not a heavy nausea it's not like he going to throw up, it just feels like he have it all the time. He have systemic sporosis, he have raynaud's (disease), he have gastroparesis and an implant (stomach). He was been sick a long time, he used to being sick, nothing he can do about the headache and nausea, but he want to do this to help everybody with disability and children, his disabilities make it all worse. He was having symptoms and wants to know if they are normal. He does not see if on the paperwork. He feels bad. He was disabled and has gastroparesis, which was prior to getting the vaccines. He has nausea and everything else from the gastroparesis, but the cold, sweaty, and cold feeling occurred since the first shot. First shot was on 03Apr2021. He could not get another shot because he was too sick with his illnesses that he has. He has a Pacemaker for his stomach. All were prior to getting vaccine. He stated he was in the hospital twice for his dizziness but later clarified that he was only kept overnight once. They originally thought he had benign postural vertigo. They did the emily movements in physical therapy to move the crystals in your ears. It seemed to work ok, but today, it feels the same. He walks around and won't go too far. He is hoarse, but does not have a temperature and is not sore. No further details provided. He goes from being soaking wet to soaking and freezing. He said he is in a good mood, just does not feel good. He lost 15 pounds in 3 weeks or less since he has had the vaccine. He was not trying to. He was laying on the floor and a bunch of other things. On 06Apr2021, at 02:30, he woke up and was so sick. He had to vomit and could not get to the bathroom and had a trashcan. He was soaking wet with sweat, shaking and could hardly walk if at all and then not at all. He was on all fours. He grabbed nearest blanket and sat on top of that with a trash can on all fours. He had a heating blanket and threw it over the top to warm up and was shaking. He could not control anything. He was too shaky. Finally, he layed down on the floor, covered up and stayed warm. He kept wiping sweat off. People that have gastroparesis are immunosuppressed and he was scared of what would happen when he got the shot. He got first shot on 03Apr2021. 0n 04Apr2021, he fell off a ladder. On 05Apr2021, he started getting dizzy during the day. He was nauseated most of the time and still is up until now. He had prior hospitalizations on 23Feb2021, and 24Feb2021. No further details provided. He stated that he is not too "with it." This started after the vaccine. No further details provided. He later stated he feels he is having Dementia since COVID lockdown. The other reason he got the vaccine is he was disabled and has an autoimmune condition and wanted to be safer. It changes day to day and he can catch anything. The second hospitalization he was not kept overnight. He found out Meclizine worked. It was not benign positional vertigo. No further details provided on Meclizine. Dizziness came back at the time of report and was persisting with walking. He can walk ok, but still feels woozy. His legs feel weak today and were not previous day. His arms also feel weak. He used wheelchair for first two days after receiving the first dose. Then it improved. His arms stayed the same. Vomiting started 02:30 am. It was the worse that he had in his life. He could not catch his breath and started having diarrhea after that. He had complete muscle dehydration. His fingers and toes were cramped and his left arm was going out straight. He layed there an tried to untie everything. He drank Essential water to get everything back in his body. The cramps went away later that day. He was feeling good by the end of 06Apr2021. During that time, he thought he was going to have a heart attack because all of his muscles were cramping. He gets dehydrated quite often. This was prior to taking the vaccine because of his gastroparesis. He said he got C-Diff because the antibiotics they gave him for helicobacter pylori killed everything off. He only remembers the name of one of the antibiotics that did that, flagyl. He does not remember the names of the other one. He does not have the dose, manufacturer, lot or expiration. He tried two and the third one worked. That one that worked was divicid. He was unsure of the spelling. Transcribed as provided. This was all prior to receiving the vaccinations. He did not have a manufacturer, lot or expiration for any of them.  He has had anxiety all of his life. He was on medication for the anxiety and he has had to take more of it since getting the vaccine. He takes clonazepam and has been taking it since 2016. They are 1mg tablets and he takes 1 1/2 tablets by mouth twice daily.  He would not be willing to send a sample. Count size is 90. They are in a pharmacy vial with no lot or expiration. He would like to know if it is normal for dizziness and his eyes being blurred. How long will it last. The clinical outcome of the events got sick, not feeling good, cold sweats, the cramp started from dehydration in every muscle of his body, could not walk, muscles cramps, fell off a ladder, he lost 15 pounds in 3 weeks or less since he has had the vaccine, shaking and nauseated was unknown. The clinical outcome of the event dizziness was recovered on an unspecified date of Apr2021 and recovering for other events.  Information on Lot/Batch number was available. Additional information has been requested.  No follow-up attempts completed. No further information is expected.