i just need to get this off my chest.

Recently i have had a few allergic reactions to foods. I have had a few foods that i could eat fine before that now trigger an allergic reaction. I have had two pretty bad ones and the worst one was last night. I had a few walnuts and a few hours later is when the reaction hit. My feet and skin got itchy,my throat was itchy and irritated,i couldn’t breathe or yawn,i felt weak and tired,my stomach hurt and i just felt awful. I told my mom and she didn’t do much she just gave me Benadryl. Yes it helped but not for an hour or two and i was terrified to go to sleep etc. Each time i have had an allergic reaction she doesn’t take it as seriously as i’d like her to. I have had about 4-5 allergic reactions now and i have discussed this with my doctor but he seems to brush it off and not want to do any testing but these reactions are getting severe now. I’m paranoid to eat because i don’t know what i have become allergic too. And as stupid as it sounds it’s starting to make me feel extremely depressed. I can’t enjoy the foods i once enjoyed and on top of that no one seems to be taking it seriously. It’s starting to get extremely scary for me. I don’t eat all day until my mom gets home and she leaves about 6am and gets home around 5pm so i don’t eat anything all day until she gets home because i’m worried about having a bad reaction while she is gone and i have no one else home to help. It’s starting to really affect me and get scary because one of my biggest fears is getting anaphylaxis. I feel stuck.