Strange reactions to allergy shots... So frustrated I just want to scream...

Anybody heard of such oddball reactions to allergy shots?  I need to know what I can do now.  Starting allergy shots was the worst decision of my life.  I've been off the allergy shots for 8 months (after 10 miserable months of shots), and I'm still having the problems that started during the shots.  It's like the shots made my system just go completely haywire, and I've never heard of that before.  Apparently my GP hadn't either.  I am 31 years old, mother of 3, and I am NOT a hypochondriac.  I really need someone to believe me and tell me what to do next.

This is kind of a long story- I live in a small town and there is only one doctor's office here.  He is a GP, and he took a class to be able to do allergy shots.  He did my allergy testing, found out I was allergic to everything.  I had never tried any prescription allergy meds.  I just hated taking benadryl because it made me tired.  During the testing, I told the doc that my throat itches whenever I eat bananas or melons, and my hands itch when I peel cucumbers or potatoes.  So he wrote me a scrip for an Epi-pen.  Said it was a ragweed allergy (I am apparently HUGE allergic to ragweed.)

Anyway, the next month my serum came in and we started shots.  My second week, I started feeling funky, throat felt a little tight, and I was kind of dizzy.  Nurse went and got the doc, who came into the room LAUGHING at me.  Laughing, he said, because the dose was SO small that I couldn't possibly be having a reaction.  But he gave me a shot of benadryl, told me to come back the next week, and to start taking benadryl before I come in from then on.  So I did.  The bigger the doses got every week, the worse I felt.  For two days after the shot every week, I felt like I had the flu.  I just felt horrible.  Even had diarhea.  Where they gave me the shots, I would get these huge welts that covered the whole back of my arms- huge, red, hard, hot welts.  The throat tightness got to the point where it just never went away.  My tongue felt too big for my mouth, the back of the roof of my mouth got puffy and started causing a clicking sound when I talk.  The area under my tongue got bigger and it looked like a small double chin.  I felt the constant need to burp, even though I didn't really need to.  Trouble swallowing, and it felt like it was hard to breathe.  I even went to the ER once.  The same doc gave me a Kenalog shot (which fixed everything!  I felt great!)  And then referred me to an ENT for a laryngoscopy.  Well of course, he didn't find anything, because the Kenalog fixed it!!  The very next day, I had to go back for my allergy shots again, and it all started to come back.  Very frustrating.  Eventually, the doctor doubled my dose of Singulair to 20mg per day and told me to keep on coming in for the shots.  It helped a little, but not much.