i feel like crap!!

OMG!! I can't believe how crappy I feel! It started last night with the aches in my muscles and joints. Today I woke up and felt like a freaking truck hit me!! I'm going into another flare up!! I don't understand why??? I've been taking such good care of myself and been feeling awesome for about 1 month. I haven't taking any pain meds, its been great. Now I'm in agony!! My back is killing me! My side is killing me! My joints are killing me and my muscles are aching!! UGH!!  Sigh... I had so many plans this weekend and I had to cancel 1/2 of them because of the way I feel. I am so frustrated right now. I just don't understand what triggers this pain??I'm not even on treatment yet. I don't think I could handle it if this is the way I would feel all the time. I just feel like crying.