Pain in right groin, radiates to right hip & thigh-feels worse when sitting & then standing up. Lessens after walking a bit...Femoral hernia?

Could be. Best to see your primary care provider for an exam. Even then, it is often difficult to find small hernias in women on exam, and you may need a dynamic ultrasound or ct scan to make the diagnosis. If the symptoms are mild enough, and your exam is normal, it may be appropriate just to observe it. Hope this helps!
Could be. Or arthritis or some thing else , only way to know , what is causing your troubles , is to see your doctor to get work up done , to find the cause in order to cure you.