Migrane included

Had a painful bout with a migrane yesterday.  I was OK in the early portion of the day but after 3:30p, I felt weak & fatigue, but NO headache yet.  I thought I was low in sugar, so I grabbed a bite but I wasn't hungry.  I took some calm Natural product. and 1/2 hr later I had a very bad headache in the back of my headache,  that is when I took an imitrex and the migrane subsided.  Currently, my nerves are going because I'm constantly thinking about this problem over and over and what other problem may occur later on.  Doc say I'm too young for a stroke.  I've got to stop this paranoia.