Evidentally I am having weird responses to certain food

Don't eat to fast or don't eat allot , I eat very slowly I take like 10 minute to eat my food plus i chew it allot before I swallow also my nut say I could eat from 4 to 6 oz I know I can eat 4 oz no problem but I wont risk eating 6 oz  so I scale my food up to 5 oz I don't feel full but I don't feel hungry, I have never thrown up and I don't aspect to, hope you get well soon.