There's a weariness creeping in as the pandemic restrictions protract. The shine has definitely gone off for many, cumulatively. As you say this experience now feels nothing like your severe depression of the past, it sounds like you're aware of something just a bit "off" and looking for a solution? How would some short, focused talking therapy CBT style work? I wouldn't feel confident to advise about 5-HTP, sorry. You could contact a supplier like Lamberts and ask about contra-indications? They're incredibly knowledgeable and helpful. Sorry not to be of more help. Good luck.