Can Starting Swimming Last Week Cause Ongoing Erectile Dysfunction And Reduced Sexual Endurance?

Hi Dr, I m 35 years old last week I decided to learn how to swim in our building pool, Then in the night by having sex with my partner I couldn t stand well and I couldn t endure like before. I faced erection dysfunction the whole week up to today and lower endurance in sex as well Please can I know what is wrong with me. Thanks