I recently went through something like this. Even though I am a stay at home mom, I am alone a week or so at a time and I was starting to have insomnia and crying and just didn't feel quite right... I knew things were stressful but I finally had to admit to myself that my difficult child side was emerging once again... anxiety was getting worse etc. So I went to my family doctor and I am so glad I did!!! It has been almost 2 months now I just upped my Zoloft to 75mg a day. So far it seems to be helping me. I can sleep, I only cry under "normal" circumstances now and I feel like I can deal with most of this bs... so much less stressed out.
Good luck I think most of us can relate, even if you just get some time to yourself or go talk to someone it helps.