Hyperesthesia

4 days ago uno (4yrs) had his vaccine. 2 days afterwards we got a new table, and at night he started to show sudden signs of hyperesthesia. he is a very timid cat, and scared easily but he has never shown these sudden behaviors. it happened very suddenly, and we have been given homeopets. now he is only coming out to eat and poop and pee and do his hyper routine, and then going to sleep. i cant find a time when he acts normal except for when he is eating (cooked chicken filet) or sleeping.
has anyone have experience with this disease?
any thing you can recomend?
please send vibes!