Ive had an awful night and woken up with tiny purple pin prick marks all on right arm, me bein a total worrier about rashes im thinkin septicemia and meningitis:((*

Think they are called petichea rash?? Ive about 12, they are tiny. Hubby thinks they are caused by heat:(( im so panicky:(( they are tiny purple pin prick marks, i feel abit sinusey laat few days so im a total panic ive meningitis or septicemia:((((

Please help:((( ive such a fear of rashes.