hip/back/thigh pains advice needed

i dont know why or how i am in so much pain, i race or run every sunday over the past few months i have had knee pains which came and went, a muscle in lower back hurt but was ok to run with and just when i felt normal again i ran the grim 2 weeks ago and all was fine until 3 days after when the front of my thigh was painfull , i went through the week with it and didnt train as the week went on the pain got worse and i am now at the point when if i bend down towards my toes it sends a sharp pain through the thigh (outside/centre)up to the hip, in the morning it seems worse and the pain spreads to lower back, even more so if i sit down ! seems to ease when i am on my feet !!

any ideas why or what i should do ?? i am 3 weeks away from starting my training for the brighton and london marathons and feeling that it is all over before i have began

Mark - the best advice I can give you is to see a physio.  Pain that is worse first thing in the morning is "normal" with injuries - things stiffen up over night whilst you are not moving around and ease off (speaking from experience! often in the shower) as you begin to move around the next day and loosen up. 

You seem to have a number of problems which could be a lot of issues but probably all related.  You need to find out the root cause of the injury - referred pain can make it difficult to pinpoint exactly where the problem starts.  For example - lower back pain is not necessarily pain due to injury to the lowerback but can be caused by lots of things - tight glutes/weak core/piriformis problems. Knee pain can often be caused by ITB problems - again ITB can be caused by many different factors.

Your thigh pain does need investigating - its getting worse though you are not running.  If you cannot see a sports physio - see your GP.  Explain the whole story - not just the worst pain you have at that moment!  All your sore bits are relevent to a successful diagnosis.

Good luck - I hope you get answers!