What does your O feel like ?

After talking to some of my girlfriends I don't have a typical orgasm. It's the building pressure and release but while on that high I'm feeling lightening bolts everywhere my skin is touching everything. I see colors and textures sometimes smells are triggered. For example we had a really good session the other night and during and after I close my eyes and all I see are pink and orange flowers I can feel them under and around me, the smell of rain and grass. It's almost never the same imagery but I love it and my partner does too. We think I have orgasmic synesthesia. How many people have it and if you don't I'm curious what does your big O feel like ?