How bad is only drinking soda?

Been drinking exclusively (give or take) no-sugar caffeinated sodas since a child. Not obese or diabetic. Mid-thirties now. How bad is this?

There’s the thing that people rarely mention when they say this is bad for your health…

There might soon come a day you’ll be sitting in the toilet feeling pain and start wondering “should I just use my hands to scoop the shit out of my ass?”

What does this mean? I don’t know of any association swith soft drinks and severe constipation.