Men of sexxit, have you ever gone through a soft spell?

My new SO and I have been hooking up for a few weeks. I noticed I wasnt ROCK hard the first few times we had sex. Then one day, i was extremely nervous because I was going to tell her I loved her. We began playing around but i COULD NOT get it up. then i told her i loved her and we talked for an hour. after that, i got an erection and was hard all night. we had sex three times in like three hours.

then last night, we were going to have sex after drinking all night. she got on top of me and we started playing around, and again couldnt get it up. we chatted for a little while then i got hard again, and we had sex four times last night.

the thing is i know its probably all in my head, at least i hope. but now i cant stop thinking about it and i know that probably makes it worse. pleasr help!