ejaculation issues?

hey guys, something weird has came across me in the past week. I masterbated a last week, and 3 days ago, and today and when I hit my climax of when I'm about to "come", it doesn't come out like it does before. It's like theres no urge to ejactualte the sperm/semen out, its like theres little to no feeling.....is this normal? I've recently been eating alot/gaining weight, and most of all this has happened since I stopped smoking....The sperm count looks about right though

Theres no pain or any discomfort whatsoever in my area.

Has anyone came across this ? Any ideas ?
Please let me know, thanks!