Serious question about bidets.... Use clean language!!

So I'm a stucky (fat) white guy here in America.

Went to a French resort in Mexico and learned to use a bidet.

I loved it!!

Nice to simply dry yourself off and be clean as you can possibly be down there.

So I get home and order a "add a bidet."

This new system works better than the French model.

Here's my question:
When this thing is turned all the way up it puts out enough pressure to actually send water BACK INSIDE my colon.

I immediately "evacuate" this water and actually feel cleaner than ever before.

Is this a NORMAL function of a bidet?