Sorry to hear things aren't going so well. There are normal ups and downs inlife but with bipolar they are just a little more extreme. Does take a little to get it all stabilized as much as you can. Your son may not know which way you are going any particular day and may not realize what is going on. You may want to have heart to heart about it with him. He is old enough to understand some of it and probably is ok with more than you think. My son is 8 and he has seen it all. He doesn't completely understand it but he is able to deal with it and there are days he settles in and trys to help with the moods. You don't have to tell him every gory detail but a good talk might make you both feel better