Can a stroke patient get COVID vaccine while on blood thinners?

Hello doctor,

About four years ago, my mother was diagnosed with a moderate stroke. Her only symptom was vision disturbance for a short time and no after-effects. During the MRI, they detected a 3 mm aneurysm. The Neurologist was not concerned with that and told her to ignore it because it was a little bulge. She has been on Plavix and Aspirin since then. She has not followed up with the Neurologist since the initial stroke because she has had no further problems. She is 76 and very active. My question is about the COVID vaccine. My dad passed away from Opdivo immunotherapy, so that you can imagine my concern about new medical treatments. I know she is at risk if she gets COVID, but is she also at risk from the vaccine? Is it risky to take it when you are on a blood thinner, have a stroke history, and have a small brain aneurysm?

Thank you doctor,

She has been to her family doctor every six months, but she has not followed up specifically on the stroke or aneurysm since it happened four years ago. Her regular doctor does not think follow-up with the Neurologist is necessary since she has done fine and had no other problems. Do you think she should check with the specialists for follow-up scans or medicine changes ( and discuss the Covid vaccine), or is it fine to regularly check with her general practitioner?