hey guys i really need some help

I don't know why but I have been having a serious overwhelming feeling of guilt. it keeps me up and I don't know why. I don't know what it's rooted to or where it's coming from but I literally feel like I'm not deserving of all that I have. I have an appointment to see a counselor but right now I feel alone. I had a couple bloody Mary's at lunch and got my nails done and for the rest of today my stomach has been in knots because it was ridiculous to spend as much as I did. this isn't just today I don't know why I eat myself alive with this but does this happen to anyone else? if so what is this and can you help me from a psychological perspective?