Hi I had HIV test after 18 days neg and no STDs. Have red dots on tongue small blister not sore near throat and 7 spots/pimples on chest, hiv? Keep thinking I have other symptoms but don't

Likely something els. Likely is a viral etiology that your body will heal on its own, but i can't say for sure without seeing the rash myself.
Checkup. Get a complete phbysicial exam and blood/urine tests. This will set your mind at ease.