Spinning?

Hey all! just another question for you to ponder....
I have ocd and Tourettes syndrome (just some background), undiagnosed add (no meds yet), and restless leg syndrome (related to my TS). I have always had this *situation* but lately it is getting worse...here it is-
I come home from work and my kids bombard me with questions, I want food, she hit me, blah, blah. At the same time I am trying to focus on each child, listen to my wife, and close out my work day. I get this "overload" of noises or information and I just shut down. I completely quit life for the moment. I lean on the counter unable to process any information for about 10 mins. I get partial thoughts going but it all gets intertwined and overloads me. If the tv is on while this is happeneing it adds to the overload. Even when it is quiet, if the tv is loud I get very frustrated. Its almost like outside distractions *arc* the wires in my head and short circuit my brain. It (quite often) results in an angry outburst toward everyone and occasionnally it makes me want to leave the situation (but I never do). I think it is a.d.d related but I'm not sure. It is as if I can feel anger building and just want to stop the noise. I remember when my kids were babies and they would cry (like kids do) at 2 a.m. non-stop- I wanted to shake or smother them so I could have peace. I never did anything like that to them but it disturbs me that the thought was there. I am a smart person and know my boundries, but this overload can sometimes be too much. Any ideas?
P.S. I would ask my wife for help with the kids when I was frustrated. I have never hurt my kids so please don't think that. The thoughts disturbed me enough to ask for help.