Glowy tingling instead of orgasm?

Every time my boyfriend goes down on me, I get this feeling that I can only describe as a glowy, tingly feeling that builds and washes over me. It can happen several times if he keeps going and feels really good, and by the end I’m trembling. But I don’t feel an orgasm where my vaginal walls pulsate like with clit play. Is this tingly feeling an orgasm too?