Need help please.....

I am 7w2d and my hormones are just crazy. Me and to SO just got into a huge fight and I mean huge. I was diagnosed with major depressive disorder in 2009 with attempts at suicide and cutting. I was taken off meds in 2011 as I was going really well. I've never had an issue with it since. Well after this fight all I can do is cry and slowly I can feel myself start to think those horrid thoughts like I did before. Idk how to react or what to do. Or how to make it stop.....