Sounds like what you have is IBS-C or irritable bowel syndrome
.If you had good response to Miralax and Colace , you should
continue that unless you start having diarrhea. Then you cut back on the
dosage to the level that keeps your stool soft and with easy passage.
If you have any family history of colon cancer
and you are over 5o years
young, then you should undergo colonoscopy
examination. The lower
is from the pressure on nerve endings from gas build up.
Make sure you drink enough fluids and stay on a high fiber diet.
Fresh fruits and vegetables along with whole grain cereal etc. would help.
I wash you well.