Hi...welcome to the forum. I'd say those are good warning signs that I'd pretty much heed as the start of a flare.
Start back on the Lialda (you should never have stopped), and go back on the Canasa nightly. I much prefer the retention enemas..but you can take the Canasa up to 3 times a day if needed.
If you start having diarrhea, that means that the inflammation has probably creeped upward higher into the rectum and probably past heading to the sigmoid colon.
Once you deal with the rectal symptoms and the inflammation starts to recede, then your stomach discomfort will lessen.
You could also ask the doc if he could prescribe an antispasmodic...that too will help.
I'd say you have low in the rectum inflammation and should start dealing with it now. For me, the stomach discomfort, gas (that seems to explode in the rectum before exiting) and rectal pain/discomfort upon bms is a sure sign.
Being a single mom and stressful jobs don't help, but if you have your med regimen set out well and are faithful to your meds, you can aleast help to keep inflammation as low as possible and treat flares early.
What aloe are you taking?
*Heather*Status: mini flare Dec 28... tapered to every 4th night
~diagnosed January 1989 UC (proctosigmoiditis)
~5ASA: Asacol (6 daily) + Salofalk enemas (increase for flares tapered to maintenance)
~Bentylol (dicyclomine) 20mg as needed
~Probiotic 3(Natural Factors Protec) bedtime + 1 (Primadophilus Reuteri) occasionally
~multi-digestive enzymes as needed ....zymactive 3 - 5x daily
~Ranitidine,Pariet (reflux) Effexor XR 75mg; Pulmicort/Airomir (asthma)
~URSO for PSC (or PBC) 500mg X 2 daily (LFTs back to NORMAL!!)
My doc's logic.. "TREAT (FROM)BOTH ENDS" worth it !!!