Hello I'm In Bali And I Have Been Bitten By

Hello I'm in Bali and I have been bitten by some sort of insect on the back of my upper leg. I'm feeling ok now but when bitten the direct site of the bite stung and went red, after approx 10-15 mins it began to feel very hot and the burning sensation traveled down both my legs. Within an hour my whole body started to feel numbness and dry thick mouth and within 2 hrs I had regained feeling in my body but felt that my body was still in a really "relaxed" state a kind of intoxication feeling for several hours.

Can you help me with this and will I have any further symptoms. It has now been approx 18 hrs " the next morning" and am feeling ok still a little dry and think in the mouth.