I sometimes wake up at night with my side numb and it feels like it is numb right into my left colon. That was happening 6 months ago maybe once a month. I also occassionally wake up with the most severe spasm inside my rectum - it is very unpleasant. Now the problem I am looking to solve has been happening for the last month or so, I have had a numb or twitchy feeling down my left side where my colon is, occassionally it is on my right side too. The odd time I have slight pain in the left upper area of my colon but it is nothing severe and the pain goes away; it does not hurt touch. However, the tingly sensation is there on and off all day long. It is worse when I first lay down at night and then slowly eases off. Although I doubt it is related, I had uric acid stones for 3 months this year from my kidneys (tiny pink crystals in your urine) and I had many tests done including, 24 hour urine test, blood tests, 2 CT scans, bladder scope and 3 ultrasounds of my organs. They figured I got very dehydrated last summer and that is all there is to say unless they return. I also had an endoscopy 8 months ago because I had a lump in my throat and spasm in my Esophogus; they discovered GERD in which they gave me Pariet. I have always had a nervous stomach or bowel since I was a child and have had similar sensations in the past but never for this long. I had an endoscopy and colonscopy done 4 years ago. I was treated for H Pylori and told that I had IBS. There was also two tiny areas of inflammation in my colon near my iliead which is on the right side but I was told to just eat more fiber for that. Well, with giving you all that history, I am a little at a loss of what to do now about this sensation in my left colon. I tell the regular doctor and he says it is just spasms. But it is never gripping like a huge spams that makes you go the toilet. He has given me Dicetel last week but that does not seem to do much. Has anyone else had a problem like this? Do you think it is time for another colonscopy? I hate the thought. It is such an irritating problem.