Should I tell him about the meds (or lack thereof)? (See details)

Yesterday my man and I had quite the discussion. I got upset and he got upset and we ended up parting on pretty awful terms. On the way home I realized that for the past week I hadn’t made it to the pharmacy to pick up my prescription. I’ve mentioned before here that I have bi-polar 2 and even though I thought I was doing pretty well without them, the lack of meds might have had something to do with my reaction. If I tell him, it sounds like I’m blaming something for my own actions and not taking responsibility, plus it might freak him out about the whole “bi-polar thing” (he does know about the bi-polar). If I don’t tell him he thinks I am some kind of oddball weirdo, has no idea why things went so far south and that odds are good it wouldn’t have happened had I been on meds. Do I tell him or do I just try to move on from here?