I am a PA sufferer and have had my initial loading doses of B12. Now due my first three monthly dose. With the aid of B12 boostspray have managed quite well. However, I had an episode at the end of of July which resulted in a brain scan with the outcome that I had a stroke on the left side of my brain. I am recovering well with a few minor hiccups and am wondering if there could be any connection with the low B12. It was also discovered that I probably had another stroke before the B12 was diagnosed, probably April .