Had this for about 3 weeks and it gets me down. I have type 2 diabetes and have just been put on metformin for the first time last week. Haven't been to the gp as I dont want to have more tests having had investigations on and off for other things. I wondered if anybody else have experienced this. My first thought was a build up of anxiety over a number of family things going on. I'm a stress head any way which increases the problems. Can tension cause these pains?