Left rib, back, and abdominal pain

I have had lower left abdominal pain that comes and goes for about three years now. I also get knots at the spots that hurts that seem to come and go. While I was pregnant I didn't have those symptoms though. I am either constipated or have diarrhea. And at least once a month I have very severe abdominal cramps that last for at least 15 minutes. About 6 months ago I have had a pain in my left rib cage that hurts all the way around even in my back and the left side of my spine hurts. I have been increasingly tired lately and just not feeling very well at times. What could this be? I can't see a doctor until October.

[crambone]

check into chrons disease