A couple times a month when I lay down in bed I have intense experiences centering right between my eyes. I usually enduce these by focusing on the area.

It starts as a tickle and then becomes what I can only describe as a orgasm in the center of my head. I hold on to it by focusing on it for as long as possible.. it usually lasts 5 or 10 minutes before my mind drifts and i lose it.

I am assuming this is related to the pineal gland, but I can't be certain.

Can anyone else do this, or had an experience like this?