5 htp does this actually work and is it able to treat anxiety. I hear it can cause heart issues. Better than ssri? Dangerous? I have rbbb as well?

Can be great. if you truly have a Serotonin deficiency. 5htp converts directly into Serotonin, thus rasing levels in the body. SSRI's don't raise levels by making more, but rather re-use what you already have, but as time goes by and you have less and less to re-use, then many people get "poop out syndrome" while taking the SSRI that was helping and it no longer helps. .