Hi,
Welcome to health care magic,
If this tingling sensations and painful thigh are not troubling your day to day life or it occurs occasionally then there no need to worry much, because in many cases no apparent cause is found to explain such tingling.
But for pain relief you should take some over the counter pain relief like
diclofenac 100 mg with hot water fomentation.
However if this tingling sensations are actually
paresthesia, which can be associated with few medical conditions such as:
1) remaining in posture for a long time
2) lack of blood supply to the particular area
3) Spina
nerve root compression like
cervical radiculopathy or multiple sclerosis - but these rare possibilities
4) Diabetes, thyroid state or
vitamin deficiency.
So if this feeling is constant and troublesome then you need to see physician who will examine you thoroughly with complete medical history and order relevant investigations to rule out above causes.
Do not be worried like I said in most cases the causes are benign and don't need treatment.
Hope this will help you how to proceed further.
Regards,