husband on depression meds has other symptoms

Hi Everyone,
I'm new to the site. I'm not a Dr. or anything, but I feel that my husband has BiPolar Disorder.

He is constantly moody, irritable, punches holes in walls, freaks out in public, and spends more money then he should. When he meets new people, he keeps talking and joking, and worries so much that people don't like him.

One time we were in the mall and he realized he didn't realy have enough money for something, so he took the two bags in his hand and threw them on the floor, left them there and ran down the stairs, this is a 36 year old man! People around him stopped what they were doing to watch, and he just kept throwing a tantrum. I wasn't very supportive, I walked the other way. Believe me, this has not been, and will not be his last public show of irritation.

He is on depression meds, because he told the Dr. that he was stressed out, but didn't tell him anything else. They help alittle, but not 100%. Today he told me that he is done with them and doesn't want to take them anymore. He said he feels numb and out of control. I think he also feels embarassed about taking them. Nobody know's he's on them, so why does he feel this way?

My marriage is crumbling. It's awful and I don't know what to do. Should I talk to his Dr. ? Is there something I could do? I know he has to want to help himself before he could get help. Is there a way that I could speed up the process?