Bowel obstruction/Impaction? anyone experience this?

I would suggest taking the Mirilax as prescribed by the doctor so that you can avoid a potentially more complicated problem in the future. You do not want to have to end up having surgery to treat the problem because from what I have read online about this, you could end up with a colostomy bag that would be attached to a hole in your stomach that collects your stool after surgery. To me, I would try the Mirilax - and lots of water! I understand a fear of medicine and it's side effects, I have that as well. My answer to that is that I always try and take a new medicine when I have lots of family/friends around who would be there to support me if anything happened. That gives me the peace of mind to know that if I did have a negative reaction - they would get me urgent care ASAP. It is unlikely that you would have any reaction to Mirilax though. Young children (toddlers) are even prescribed Mirilax to keep them regular at times. If a two year old can do it - you can too. Any short term discomfort or bloating Mirilax would give you is a small price to pay for the pain free future you need and deserve. Once you are regular again your spirits will improve and you will be glad you chose to help yourself.