Sorry if i've posted this in the wrong section, but it's hard to describe where the problem actually is.
I have been having a very strange sensation for about 3 months now everytime when i lower my head to look down (chin to chest), for example when taking a pee (i am male by the way). I keep getting a strange pulling around my coccyx and sometimes on the back on my legs at the rear of my thighs (hamstrings). In fact the sensation stated at the back of my legs about 3 months ago and is now at my coccyx. It's almost as if something is pulling from the base of my coccyx and causing it to go numb instantly. This happens when i am stood up or when i am sat down.
For the record, i don't have chronic back all the time, but i have in the past hurt my back and had to rest up for a few weeks as i couldn't walk. A friend at work suggested that this may be sciatica, but i'm not sure that it is.
Just wondered if anybody suffered from the same problem or maybe hazard a guess as to what might be causing it.