depression affecting my relationship

I had a horrible side effect to a medication that I was taking. It sent me in to a severe depression and I did not even realize it. My boyfriend picked up that something was seriously wrong by about the 4th week of my depression. I am starting to slowly get out of it, but it keeps coming back up. It is taking a huge tole on our relationship and It is not fair for him to have to keep dealing with me. He was the only one I felt comfortable saying anything to, but now I feel like I should not put everything on his shoulders. I need someone to talk to because I feel my depression will get worse if I just keep everything in. I need advice on what to do.

This is why I am here too. I feel like I am being unfair to my family. I think we need to let it out here. It seems so far to be a great place just to let out feelings out. I want to talk to my husband but I don't even know what to say at the moment as I am not sure what I am feeling. I am so scared I am going to hurt them but being distant and not engaging. Advice - don't shut him out and keep talking here and to him. Our lovers do want to help us.