I've heard there are others. You're not alone.
There's also a water process to remove caffine from coffee, if you're really interested in drinking coffee without it.
No interest in drinking decaf but the last time I had it was from a gas station and I asked the attendant if she was sure it was regular coffee. About three miles down the interstate it felt as if the top of my head was going to blow off and I knew what it was from.
Decaf cola does the same thing to me. 7-Up advertizes their drink never had it and never will. It doesn't bother me at all and probably whatever they make their drink from is naturally caffine free.
Thanks, it's nice to know that I am not alone.