Sex tingles

I'm not talking about the good kind of tingle!

Sometimes when he is on top and its not all that slow, I get a very weird/not fun tingle that usually starts in my face and goes on my chest and my arms and hands. (kind of like when your leg falls asleep)With that my fingers start to stiffen up and so does my lips - It affects my speech because my lips wont move like they are supposed to. This lasts awhile.... 5 mins or so, but at the last part of the 5 minutes it really doesnt feel right and the only way I know to describe it is; they were millions of little ants crawling all over and as time passes there become less and less ants but still as uncomfortable and thats when my eyes feel like they start to shake, or its the muscles outside of my eyes then it fades quickly away.... its just very strange. it has only happened to me about 10 times in my life but that just isnt right.

I was wondering if it may have to do with my breathing. Maybe I didn't get enough oxygen. I don't know...

Please let me know if anyone else has had this problem or If someone can actually help find out why this happens.

Thank you.