Swallowing problem, a thing called eosinophils esophagitis

(I didn't know what category to put this under.)

I'm 17. For the past couple of months, I've had problems swallowing solid foods. It randomly started one day after school, I was eating a sandwich and the bread kind of hung in my throat and wouldn't go down. I started panicking when that happened and swallowed quickly, and after a few seconds it went down. This was when it all started. I've been a cautious eater for several years, though.

I'm wondering if this has anything to do with my anxiety and depression. This is the first year I've been at school with no friends, because all of my friends moved away. I'm shy, so I don't have anyone to talk to. I'm a pretty lonely/depressed person.

I've had a chest x-ray and a barium swallow, and both were normal. The barium swallow showed that I Had a small hiatal hernia, but the doctor said that shouldn't give me any of the symptoms I've been having.

I saw another doctor, and he says there's something called eosinophils esophagitis. He thinks I might have that and he doesn't believe my problem is due to stress. I'm REALLY scared to have a scope, though. Wouldn't the barium swallow show if I had anything wrong with my esophagus?

I've had other weird symptoms too, like air hunger (shortness of breath; i don't have asthma) and random weak spells. Today, I had weird spasms near my heart. They were sharp pains that came and went, but they didn't really hurt that much. I'm thinking that I got weak because I was nervous and thought I was having a heart attack.

(Also, these symptoms seem to worsen when I'm having my period or around that time. I know that some people have increased anxiety during menstruation, but I don't know if this is just PMS or what it is.)

But anyway, has anyone been through this or is it just me? Any ideas on what it could be? Anxiety or something else? I've been living off soups and yogurt and health shakes for the past two months and it's wearing me out.