I was emailed

A lady emailed me about a specific issue and than added in the following question,
Am i normal  if i have the weirdest fantasies  and baddest thoughts? can i still be Frum if that is what is in my head all the time?
Personally i will answer one thing which i said to someone else too and that is IT DOES NOT SAY ANYWHERE THAT ONE IS NOT ALLOWED TO HAVE A YETSER HORA isn't god the one who gave that to us?
I think one of our problems is that we don't have that friend that we can open up to and tell or share any of these thoughts with  and that is why we tend to feel we are crazy or insane and cannot be frum and live with those too.
I think that is a mistake and there is nothing wrong with having those in your mind etc.