All my body wants is chocolate

So this is one of the bad things I eat. The problem is all my body wants. I don’t like much other things either and the only meat I will eat is chicken. I pretty much won’t eat most of the day and eat in the evenings. Some days all my body cares to have is chocolate chip cookies and bam I’m satisfied. Honestly when I think of food and craving that’s all my body wants. Do I have like an eating disorder or just being picky? My dr says I’m not underweight or anything.