<human>: Background info: My best friend since 3rd grade is bipolar so while I'm no expert on the subject I've grown up seeing the signs. 

My bf is a catch and is very sweet and caring but sometimes he can't control his moods. He had a very bad childhood with a lot of trauma (mom was abusive and an alcoholic dad was a drug addict and that's just the beginning of it) I've seen him exhibit the same behaviors that my friend has all her life. Not only will he flip a switch and get icy cold if the wrong thing is said, he also displays the manic side as well. He will start talking very fast unable to stop about how great he is and his life is. Then an hour later he will be depressed for seemingly no reason. Keep in mind this behavior isn't all the time he tries to control it and does a great job for the most part but I can tell inside he's not happy most of the time. 

He is very against going on any sort of medication because his dad was a drug addict. How do I convince him that he should get help for this without offending him or calling him bipolar with no medical backing?

Give me a shortened version of the text
<bot>: I think my boyfriend is bipolar. He won't go on meds because of family history. How do I convince him to get help?