MiraLax and miralax

I really don't know if Miralax is causing this side effect but I have been on Miralax for 3 years and then starting having problems with sores, burning and salty mouth. I had the sore removed by an oral surgeon and it came back as chronic inflammatory mouth , cause could be food, meds or oral products like toothpaste, mouthwash and etc. I did have a new night guard made and noticed after three nights my mouth started burning and I got a sore and had allergy tests,egd, went to ent Dr. and had X Rays and went to an internet, dentist and oral surgeon. I also have eliminated foods, drugs and don't wear a night guard and even went off Miralax and a stool softener with no improvement. I went back on Miralax and still even if I'm on it or off it I still have a sore mouth. what am I to do????????

I have been using MiraLax for 3 months now. It has helped me tremendiously with my constipation however I have had horriable gas
and bloating I have gained 10 pounds. I am a regular exerciser and weight liftter (toning mostly) . I could not figure how I gained the extra weight. I hav'nt done or taken anything different except taking the MiraLax. I was told it did not make you gain weight or give you gas. Maybe all the studies are not out yet. I don't know but I need to get this weight off fast. Could it be water weight?? from miralax? Please if anyone who has used Miralax or a doctor who has had this problem help. I hate to quit taking Miralax because it really helps me. It has been the best thing I have used in years. I would love anyone to comment or offer advice.