Well if the mosquito is carrying malaria or some other disease then yes it could be harmful, and fatal, but if it's just a normal mosquito you'll probably be fine. My sister really attracts mosquitos and in the Summer she is always being bitten like 10 times at once and she's fine. Some people may feel a bit sick the day after. Keep an eye on the bites just to make sure they don't get bigger or turn a nasty colour or start to hurt more. Maybe you could buy an itching cream to ensure you don't itch them- itching bites can scar the skin.
it will hurt and itch a lot but u will probobly get sik