Is something wrong with me?

I don't feel pleasure when I ejaculate and very little when I masturbate. Is it normal?

This has been happening for the last 5 months or so...I don't even know when it started really. I masturbate almost daily and I'm not sure if that's an issue. The few sexual encounters I had in this months I felt some pleasure when someone gave a blowjob and when I ejaculated I felt a little bit more, but that's it.

What causes it? I thought it might be something hormonal but what kind of tests should I take to know if it is hormonal related?

I exercise like 2 hours 3 days a week or more, and I don't have any disease...well I didn't have last time I checked.

If someone knows or needs more info, I'm all ears.

 

Thank you all for your answers. I really appreciate it.

I'm 21 almost 22 and yes, I do have foreskin. I'm a bit overweight, not much though.

I do drink a lot of water when I can but it ain't constant. for example, I try to always carry with me a 1.5L for school, I usually drink it within 4 hours or less, and fill it half. Sometimes I forget and I just drink water whenever I pass a..drinking fountain(Is that what is called?)
By the way, I sweat VERY easily, so maybe I do need to drink like 3 L a day. Where I live is a semi-desertic area and cimate changes a lot. In the morning is super cold and by 10 am it's above 32ºc, by 1 is like 40ºc and by 8pm it's 20-15ºc again. So in the afternoon I sweat a lot.

Lately I've been feeling tired a lot, I've a schedule in which I wake up at 6-7 am and sleep at like 11-12 at night. Most of the time when I wake up I just feel tired. Unless I exercise for like 30 min., I don't really activate myself (does that makes sense?), and I only exercise at night.