I Had A Tia About 5 Months Ago. I Had

I had a Tia about 5 months ago. I had cervical spinal surgery a year ago could the small clot have been from the neck injury? I am have a OT of Ian in my right shoulder area due to the surgery. I am scared. I don't want another one. I had factor V testing my cholesterol is down to 137 and I loss 40 lbs. I went through a stress test and everything was great. I had very high blood pressure that is now under control.