Am I developing an eating disorder or am I just obsessed with exercising?

Shyoutgoing
I goto the gym about 5 times a week or more and feel super bad when I don't make it. I burn from 600-700 calories in an hour on the elliptical but some days I'm just working with weights.

I've noticed my eating has gone down just because I've gotten lazy, I wake up later and don't have time to make breakfast so I'll usually take an apple. I have lunch which is usually a sandwich and an apple and granola bar, then gym and the dinner might be a sandwich (lol mom doesn't cook), a small salad or something. I eat meat too and lots of chicken, dinner is usually my biggest meal because I'm starving when I get home and then il have more granola or something during the night and tea. This is just a rough example. Is it an eating disorder?
Updates
+1 y
There's also a hot guy who's a personal trainer at the gym that gives me motivation to go.. lol lame I know.
Am I developing an eating disorder or am I just obsessed with exercising?
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