HELP ME OUT! :(

Hi mommies, Can anybody tell me of this is probably an insect bite? I am sleeping as the same bed as him but no red spots like this. He told me at times its itchy. He used to have this kind of red spots but it was on the hand (1 spot) but today , my toddler has these at his two legs. So heartbreaking. No fever, no vomitting so far. Drinking and eating well. My toddler is 2.5 years old.