Leave help: so should i tell him? - Help.com

First of all congratulations on working through it without medication! That takes tremendous strength and courage. Just make sure you know where to find help if you should ever need it, because bipolar disorder can change or worsen sometimes, and you may find that while you don’t need medication or therapy now, you may need it later. (I say this because I have a friend who did the same as you for years, but then had a psychotic break and now needs medication to avoid suicidal thoughts.)
I think if you are dealing with it on your own as you say, then you should feel free to tell him without feeling like you’re burdening him. It shouldn’t be another issue he has to deal with if you’re the one dealing with it, right?
On the other hand, if you think it would worry him, you don’t have to tell him. It’s not like he’s going to catch it from you! So basically, it’s completely your choice.

my cousin had bi polar. i was really young when she had lived with us and she was horrible. but didnt know she had that til way later on when i was older and i knew and understood better about everything that was going on in her life and basically why she was so mean to us. that being said, he may have some unspoken questions about things you do so if you tell him it just might clear things up. by like, alot. but in the end it is your choice so do what you think is best..