dthrill,
My MM was caught when my nurologest was trying to diagnos the cause of my stroke. It was due to too many rollercosters in a short period of time, inciated the migrains that later I was perscribed an medication I didn't know i could not have (triptans) that caused my stroke.

I had the EMS and the STA-MCA bypasses. I had both the surgers done at the same time. I had both done since they were worried the STA-MCA bypass would not as sucessful in feeding my brain with the adiquit amount of bloodflow.

In my EMS case I have a perminate softspot on the side of my head the size of a 50cent piece. At first it was extreemly sensitive after a year the extreem sensitivity has died down. I can feel in the soft spot the changes in the weather and how the muscel is reacting to the change in pressure. I acadently smaked the softspot with something hard and I called my nurologest and he saw me the next day to verify I didn't injure myself to badly. I didn't, it was just sore for a few days. It is hard to expain the sensations.

I have no real issues outside of being protective about that side of my head. so no contact sports and  I always ware a helmet when biking/motorcycling ect. No Skydiving or scuba or roller costers for me any more.

I hope this helped,
becky