Sounds like the mozzies to me!
I already have 3 of the same bites, myself, bond.
Last year was the 1st time I'd ever been bitten by them - I had 11 bites all in one go and it made me quite ill for a time.
I don't feel ill this time, it's just the itching that drives you crazy.
Try and get some antihistamines. They do help with the itching. The only 'down side' is that they can make you drowsy the next day. I had to have a 'day off' the 1st time I took them, but being an insomniac, they helped me to get a few cheeky hours I wouldn't have had otherwise!