How to accept my family better?

Now I get they are my family.. and yes I still live with them because at the moment I am really sick and on a sick leave from my job because I am not able to go in because of how sick I am. The problem here is that my family either does not believe I'm sick or likes to make me sicker.

So I have a stomach ulcer, and I am on acid suppressing medication. My mother cooks and does not believe im sick. Even though the doctor even told them I was..

For example (this happens a lot) they gave me potatoes and when I ate it I had horrible burning pain, finding out my mom snuck in spicy pepper juice (just on mine). I hold my stomach in agony and run for the pain meds and my mom and brother yell at me saying "stop being dramatic" now I know they are my family and have to respect them and I am really trying.

Another time I caught my mom and my brother down stairs putting hot sauce in my soup. When the brought it up and threw it in the toilet and just made myself something.

I know they are my family but they only do this to me.. I am really being patient with them, I tried sitting down talking with my mother at the table.. but that did not work, she got mad and called my older brother and she makes him yell at me. So just go up stairs. One time she got him so mad at me one of the people living next door called the police and they talked to them. After they left my mom ran into her room and locked the door and ignored me. And made my brother yell at me some more.