Hate the uncomfortable feeling

I was diagnosed with UC a little over four years ago and am so tired of feeling miserable. I've always been a frequent bathroom user, but never thought it was anything more than fast metabolism. About four years ago I started the "ab ripper x" portion of p90x. After I was complete my stomach hurt, which is normal after a hard workout, but the pain never went away and started to increase to where I had become constipated for a long period of time. I started noticing blood and mucus instead of actual turds. Either way, I went to gastroentoligist and was told I had indergone severe stress and was prescribed 50mg Valium a day. I started using the bathroom again and didn really watch what I was eating. I stopped takin the meds because I didn't want to start relying on pills, and all the issues came back. I went to a dr and was told I was suffering from UC. This was about 4 years ago, right before my son was born. My mom was diagnosed with Crohns like a year or so ago. I've been carefully watching and reading up on lifestyle changes and how I should eat. My biggest problem is the constipation and bloating I'm constantly going through. I've been constipated for about 4days now and I have this urge to pee like every 20minutes. My stomach hurts so bad today that I'm afraid to eat anything because I just don't want to go sit in the bathroom forever and not produce anything. I tried miralax last night. Does anyone know any methods that may help????