I know this has not got a lot to do with IBS, but I've seen it on NHS website that IBS can lead to fatigue. I've been feeling extremely tired recently (past 4/5 months it seems to have got worse), got no energy most of the time and just feel lousy in general. Could this be to do with my IBS, or perhaps a side effect of my mebeverine tablets (I take 3 of these a day 135mg). Any advice/insight would be good. Thanks in advance.