well it could be just your body getting use to not having it in. it took for me maybe 4 to 5 months before i started having my period at a regular time again. or at least by my reg. time every 3 weeks. but last month it still was a little different on how i bled. if you don't mind me asking, why did you get it removed if there were no problems, did you want kids? just wondering. if not, just give it some more time and see if things get better, and if everything with you is ok, if you're not wanting to have kids right now, since it didn't bother you before, the iud might not bother you again. but if you do decide to get it, please if you notice any problems with yourself like anything that has been mentioned in the threads, please do have it removed, do not wait to see if things get better, usually if anything they stay the same or get worse. at least for me and from what i've read about other people.