Yes, you NEED insoluble fiber in your diet or the C will never get better. I've been on miralax for about 4 years and have never built up an immunity to it like I did the Zelnorm. A few tricks for the miralax is to be sure to take it on an empty tummy and than eat something shortly after to help stimulate your colon. You must also drinks lots of water through out the day as the miralax is an osmotic laxative and works by pulling water into the colon.
Hang in there, I too have had times im my life that I would have rather died than endure the pain but you must find the streagnth to go on. I agree with everyone else that you need to see your regular dr and get some anti-depressants. I've been on about 4 different ones throughout my life and like Lexapro the best. You have to STAY on the AD's for at least 4-6 weeks to really see the full benefit!
-------------------- Taking it one day at a time.....