Lots of people reading your post but no replies - and that's probably because no one knows.
A count 100-130 is great. But those old strokes - I have no idea what to say about them . Your hematologist I'm assuming is keeping track of your platelet count with you on Plavix and aspirin? I was diagnosed in 1989 and never had an aspirin (or anything else except tylenol) from then until February 2019 when I had to take 2 baby aspirin a day for 30 days after knee replacement - my experience, my count went up to something like 220 [too lazy to look at my records] while taking it. My hematologist had me get a count 2 weeks into the aspirin and then after it was over. Then again in November 2019 I started it again when my other knee was replaced, again my count went up while on the baby aspirin [197 k?] and back down after off it.
I can't tell you whether to be nervous or anything else - do you have a good relationship with your hematologist and neurologist? Have you related your fears to them. And most important are your doctors communicating with each other? And I'm just curious - with 2 old strokes, brain aneurysm and 2 more TIAs are you seeing a neurologist for this or a cardiologist?
"Instead of wasting your time worrying about symptoms, just get it checked out" -Nieca Goldberg, MD