Suggest Remedy To Get Rid Of Numbness In Whole Body

Recently, I drank a large cup of ice cuppocinoes (Bought from Coffee Bean). I drank it slowly within 5 hours (from 12-5pm). Afterwhich, I attended my normal 2 hours gym classes (1 hr dance class and followed y 1 hr cardio class). When I reached home and read my email for about 5 mins, I can feel that my tummy seems to be numb (thousands ants tingling). Slowly, I can feel it in both my legs and it moves on to my hands and following my face and head. I though it may be my sitting position. Hence, I rest flat on my bed but the numbess became so strong that I can't breath at all. I felt that this is not right at all. In the end, despite the uncomfort, I stood up n walked round my house for at least 3 hours and kept drinking water. And the numbness finally went off after that. When this type of situation happens, is this the right way to get rid of numbness and any cues on the cause of sudden numbness?