I wonder why you're choosing to get involved with someone right in the middle or after an inpatient episode? It's not the best time to try and date, I hate to say it, but I am being honest. People don't go inpatient for two weeks just to get their meds checked. Usually, it's because of a severe depressive episode, and often involving suicidal ideation. Is that why you were inpatient?

I still think full disclosure is best. It gives him the option to choose if he wants to proceed with you under these circumstances. Otherwise, given the above solution, you're watering down and downplaying the full truth, aren't you? Then if he finds out later, he will feel you hid it from him and were not entirely honest, and it could ruin it anyways. I personally wouldn't even date, but that's just my two cents. It's entirely up to you!