My husband has been having very similar symptoms for 2 years now and it’s getting worse. His is on the left side of his head and they see “nothing”. He’s been turned down by Mayo Clinic for help 3-4 times with the latest being the MN facility. We live in Florida and were willing to travel out there 😞 Shands finally told us last week he has (CAA) Cerebral Amyloid Angiopathy. At least there’s a name for it. No cure for him. They typically use an auto-immune suppressant but after age 65 they won’t it’s too risky if he gets sick. You’re young fight for your health!! I’m so disappointed, but we move forward and live each day the best we can.