NAVEL PAIN + ABDOMINAL PAIN. Fbrmylgia?

Am sfring frm FIBROMYALGIA,nw am nt tking any medcine relted this bt my whole body part(arm,muscle,leg,hand,finger, foot,joint)still pain a lot. But main problem is from last 5 days,1st day my NAVEL from inside start paining when i touch it and some mild yellow discharge with very bad smell when i put my finger inside navel 2-3times,also navel paining  on bending or lying down in bed. Nxt day i felt pimple in my anal & some pain(wich is gone nw)(also dne my anal fistula opration sucesfull on 2016).3rd day navel pain gone and abdominal pain started. Now Frm 3 days i hve abdminal pain (pain moving in whole abdminal) + navel pain (which comes & goes) and today i went for bowl movment 3 times in which 2 time normal stool and 3rd time only some white mucus (jelly type liquid). Yesterday i did my chckup, ULTRASOUND,CBC,ESR,SUGAR. All reports are normal. Doctor said thre is nthing bt stress. Now taking RABEPRAZOLE and multvitamn tabs. Bt stil pain in abdminal & navel is this bcz of FBRMYLGIA?