Ever since I was little, my mosquito bites have been horrendous. Currently, I have about 7 mosquito bites on my legs. A few came out of NOWHERE (i think mosquitoes stalk me). One in particular got to the size of a softball (it's shape). It was VERY red and at first, it was raised, but that went down after the first day. This happened to me once before about 3 years ago on my foot, in which it took up my ENTIRE foot. So, I went back to the doctor and they gave me antihistamine medicine and an anti inflammatory steroid cream. Well, now i have three more bites in one spot and they are looking to get huge. So, my question is...is this normal? This usually only happens on my legs...once I take the medicine it goes down in about 2 or 3 days. Is it possible to be allergic to mosquito bites or could it be something else? Sometimes they don't get huge, but let me tell you....they can get nasty. Any insight/suggestions would be appreciated!

Sorry for the long post.