The Big O

In the first few months of being with my bf, I could "o" every time. Easily. 
But now I'm having a harder time. 
A lot of times I get too wet and can't cum. I did a little research and it's almost like I have a "hooded" clit. I have put on about 10lbs since we got together. And that's when the issue started. Anyone else have similar issues with any of this???