Am inthebonly one experiencing this pain?

Sorry if thi is to personal but idk if thi i bulvodynia or vaginismus out of no where im in pain down their like I get a squeezing tightbfeeling inside the vaginal opening when im aroused and horny (celibate for 8 years ) I'm in pain and I can feel it squeezing and getting extremely tight and it hurts im in pain for like 10 seconds does anyone experience this if so whats thi truly called ? I dont know if people experience this or i this just me