Hi Scottie....sounds like you're doing fantastically well in the weight loss department....congratulations...
Re the bowels....I drink prune juice when needed....try to have at least one bodywise bar a day (quarter of daily fibre intake) to complement any other fibre I eat during the day...and take coloxyl and senna tablets if I need a little more help. Recently when in hospital was on laculose twice a day (liquid) it tasted APALLING and I don't think it helped.
Good luck
S