Nobody can name what bit you from a photograph of the mark, and that includes a clinician. What does narrow it is where the bites are, what you were doing beforehand, and one or two things about the room you were in. Four questions, and the answer tells you what would confirm it rather than pretending to be sure.
Before anything else
If any of these are true, stop here.
Where on the body?
Position is the single most useful clue, because most biters can only reach part of you.
When did you notice them?
What you were doing beforehand narrows this faster than what the marks look like.
What do they look like?
Reactions vary enormously between people, so treat this as a hint rather than proof.
Anything else true?
Pick the one that fits best. This is often what decides between two similar answers.
This tool describes patterns and is not medical advice, and it does not diagnose anything. Reactions to the same insect vary enormously between people, a substantial share of people do not react to bed bug bites at all, and reactions can be delayed by days. If you are worried, or a bite is not settling, see a clinician rather than searching further.
