What's up with this?

So something is going on with Jackson. I don't know if I'm just being paranoid or what but the way he's been throwing up just doesn't seem right. Friday May 8th, gets a migraine at school, once home he throws up 2 times, falls asleep on the couch and is pretty much out for the night. Next day he's fine. No issues. The next week, Thursday, gets a headache at school, comes home and starts to throw up. This time he throws up 6 or 7 times until he goes to bed, sleeps thru the night. Friday morning he's not feeling great but he's not vomiting anymore, we go to the dr and she diagnoses migraines since he's had no other symptoms, no fever, no more vomiting. That afternoon he starts getting a stomach ache/cramps, is literally rolling around on the floor/couch wherever he's sitting and grabbing his stomach crying that it hurts...this goes on for about an hour and he finally vomits again. Then 1-2 more times....feels puny, still no fever, doesn't want to play or anything. Sleeps all night Friday night, does this again on Saturday...nothing all day, just feeling puny...starts getting a stomach ache later that day, like after 5pm....vomits again, clutches stomach and complains about how bad it's hurting...this time he also has a headache with it...I give him ibuprofin and go lay in his bed with him...this is about 7pm...he still has cramps/headache for about 30 minutes until he falls asleep for a while....kinda in and out. He gets up to watch a movie with us a little while later, still feeling bad, he thinks he needs to throw up again and tries but is only dry heaving as he has not eaten much of anything in 2 days. Sunday morning wakes, dry heaves, feels fine after that. End of this illness. Then yesterday, gets a headache after waking from naptime at school....throws up at school about 4:30, comes home and vomits again about 5:30....feels puny the rest of the night. Wakes up this morning feeling fine. Does this seem normal to anyone? It just doesn't feel right. I'm waiting on a call back from the dr to see if they want to see him again. I'll let you know.