Hi and welcome to NeuroTalk!
Sorry for the reason you're here but we all are kind of in the same boat! We've got a good group here (I think so) with lots of support and some fun over at The Stumble Inn.
I can relate to your symptoms as mine are about the same. I don't have young children (mine are grown) and I admire anyone who can keep up with youngins' and work, too! I used to but didn't have MS to deal with. Keeping you in my prayers.
I was on Betaseron for a while but could not deal with the side effects plus it just didn't seem to be working for me. I am now taking Tecfidera. Seems to agree with me so I'm keeping up with it. I hope you can find a DMD that agrees with you and allows you to continue to work.
Look forward to seeing you around the forum!