Having anxiety reading posts on net about effects of gallbladder removal...will it cause weight gain, change my metabolism, vitamin deficiencies, ibs?

None are common: Bloggers and posts indicate the unusual experience of someone who is not satisfied. Stick with the larger, medically reviewed websites if you are going to seek wisdom from the internet.

Good alternatives: You are right to be concerned about the effects of removing gallbladders; i believe this should be the last resort rather than initial treatment. I've had many patients have great success with natural therapies to dissolve gallstones & flush them out of the liver/gallbladder. See http://www.Townsendletter.Com/july2011/momiracles0711.Html & the amazing liver and gallbladder flush by andreas moritz.