Breakdowns

Dustin went to Chicago for work at the beginning of October for 6 days. It was very hard on me to be alone with our kids for so long. I was exhausted and overwhelmed. After a few days I had a breakdown, and I had one every day after, until up to 2 days after Dustin got home. Since then, I keep having them. It's not that the kids are being horrible or doing things that normal kids don't do but it seems like things happen when they aren't convenient for me and my schedule so I stress out, yell and scream at them for these things and I hate it. I end up locking myself in my room for a time-out and try to think about what is going on and why. Well my surgeon asks at every check if anyone has noticed personality changes with me, so I was concerned. I called his office and they said that what was going on wouldn't be directly related to the tumor but wanted me to get an MRI to see if there are any changes. I had the MRI last Wednesday. I'll see my surgeon next week on Tuesday. I hope that there aren't any changes but want to know why suddenly I started having these episodes (besides the fact that I had almost no help or breaks from my kids for 6 days)???