Linzess

I have IBS and usually have a bowel movement at least once a day but some times I go a day or so without having one which will lead to bloating and pain. I was prescribed Trulance by my GI doc and it did help me for 3-6 months but feel like it’s less effective now and causing more stomach pain so my doc gave me samples to try Linzess. I have anxiety when it comes to taking new meds and have looked things up and people say it made things worse or that it’s bad for you. I wanted to seek advice on this drug and please let me know you experience with this or if it helped. Thanks!