I Have A Pain In My Thight And Its Driving

I have a pain in my thight and its driving me cray on top of the thigh I aslo press on it and it huts in leg under knee sumitnes and and above numbs up and the other part is that I have no reddnedd no poped viens I think its a blod clot but when I press on it it starts to hurt in thigh I also feel in my back and by buutck and when I stetch it hurst the only trime it gets worse is when i walk aloth leg thight please befor i go to hospital can sumine anser excuse my writing im at work writing fast thanks