Stung by a scorpion on my foot in Nicaragua at end of feb 22 , 2013 had symptoms of muscle spasms , twitching , numbness , burning tingling increased blood pressure heart racing , mild swelling then a blister developed at site around 2 days later no antivenin given for sting Not available , felt better at 4 hrs later but still had pain at site some mild swelling and numbness burning sting sensations muscle twithces .Went back to USA and still today having symptoms of muscle twitches all over and feelings of pain at bite site and burning sensation and low fevers .. Some abdominal symtpoms .. Could this still be from the scorpion toxin or could I have gotten a parasite or something else from the scorpion . Been to doctors and thy can't find anything .. Still waiting for infectious disease doc because I have so have g night sweats and weight loss fatigue muscle aches