Great Thankyou,
Ice the red area twice daily and change flip flops for proper sport sandals. The shin pain is a muscle that holds the the foot up most likely aggravated by flip flop walking or rolling of arch/ankle. I suggest you get a strap for the ankle and change the foot wear.
It is possible you have gout so have the doc check your uric acid levels. Especially given the pain at rest.
Gout can effect multiple joints so this might explain the hands. However the areas in the hands is known as the thenar eminace. It holds the main muscle that draws the thumb across the hand. These days iPad, iPhone & typing can all cases this condition.
I would bath the hands in hot water with a muscle relaxant called magnesium sulphate (Epsom salts) 1/2 kg in every hand bath (use sink or sink bowl) 20+min soak everyday for two weeks. And if you are doing and iPad/iPhone stuff stop it over those two weeks.