Eating disorder? Anxiety? Or what?

This is my story.

Back when I was age 5 I had trouble eating certain foods at home I went through a two years time where I could not eat any kind of cheese not even Macaroni and Cheese and I could not eat Chicken nuggets at all and a few other foods. It was like if I put the food on my tongue I would feel like I was gonna throw up..

I started school at age 6 from the beginning I could not ever eat the schools lunch from the time I went to school up until lunch time I was so sick.

In 3rd grade it gotten worse I was crying I didn't want to go to school and face every day. I went to the doctor to get evaluated, but the Doctor said there wasn't anything wrong with me I was pretending and didn't want to go to school. I was put into the Schools office during lunch time and I brought a home lunch to school. I could not eat it I got so sick that when I put the food in my mouth I had to spit it up.

Then in 5th Grade it got much more worse. I had to carry water bottles around with me because from the time I arrive at school til lunch time I would be sitting in class I would be constantly swallowing my spit until I ran out of spit and having anxiety attacks.. During lunch time my teacher told me to stay in the classroom. So I laid down in the back of room on the floor until lunch was over. Then I was fine the rest of the day.

This continued all the way up til 12th Grade in High School. I then could eat my lunch I ate every day. I've gained weight and didn't look like a Sick person anymore. That been about 6 years ago, but I have been noticing that my symptoms are coming back it starting with me not having enough spit to swallow last December I had attacks because I thought I was Suffocating. And when I put food in my mouth I'm getting that sick feeling and I have to spit it out. What should I do? Should I go get evaluated again since I'm older? And also I think I have sich high anxiety that my armpits just sweat so bad constantly. If it is my anxiety what should I do? I don't want to go back to those days :'(