Am I getting crazy?

[Seeker531]

Hey, I've done vipassana meditation on a regular basis for a year and some ordinary meditation. I also do some lsd. After my last few trips I`ve started noticing that the seeing arises every moment again and ceases. When I look it`s a little bit like flashing and I realised that in the between I am with my thoughts and feeling. It`s quite frightening though most of the time not. Only when I try to make sense of it. Does anybody has the same experience and some advice how to integrate this and am I still on the right track? thx