Sumatriptan
"I have suffered from migraines since I was 16 and been put on several different medications. Right now I have been taking Topamax for over 4 yrs. and it has gotten to where it isn't working anymore. So my doctor gave me Imitrex injections. And they work wonders in getting rid of my headaches but the pain in my chest like something is reaching inside my chest and squeezing the life out of me and the heaviness and tingling sensations lasts for about 15-20 mins. "