I have joint and muscle stiffness, sore throat, sinus pressure, chills, feet and hands cold to the touch, no fever, large,discolored red lump on leg with swelling size of silver dollar, the lump is hard and hurts when you push on it otherwise no pain, several small ones now up my leg too........when swelling went down with elevation and advil, notices small red dots. does this sound like spider bites??