21 year old male - diet and health questions

Greetings all. Long post to follow, you have been warned, but hopefully some will take the time to read and offer some help. I am a 21 year old male, and in something of a unique situation as far as things go. My story is a long one, it started at about 14 years old. Until then, I was a chubby kid, never obese but on the plump side. As to be expected, I got teased horribly in school, called fat, et cetera. At 14 I snapped and lost a lot of weight. It coincided with me growing taller as well, so between both I leaned out quite a bit. However, the problem was that that wasn't enough, and in response to the former pressure, I developed an ED. I restricted what I ate and exercised a lot from 15-18. During a time when most other boys were pigging out in the lunch room, I was hardly eating. At 17 I actually became anorexic, and went from 119 to 99 lbs at 5'6" over the course of a year.

From 18 to the present I recovered, and between now and that time I have weighed everything between 100 and 140, with widely fluctuating weight. The ED wasn't without consequences, I believe I have ended up shorter than I might have been otherwise (currently 5'6", my father is 5'7" and my sister 5'8", though if I am lucky I may still grow). I am also behind development-wise and am still sort of going through puberty, at worst, I look about 15-16 instead of my actual age.

As anyone who has had an eating disorder will know, the voices and obsessions are very hard to fight. My recovery was mostly on my own, I only had limited dialogues with specialists, but they did advise to stop weighing myself. I only take weight every few weeks now, and I try to not focus on the number. I also have difficulty stopping counting calories. Most days I try to stay under 2,000 or what will maintain my weight. However, I do work a very active job, 40 hours a week doing construction and contracting, and the hunger builds up. On some days I am starving and can consume 5,000 calories. I do not know whether this qualifies me as a binge eater, or whether it is simply backlash from years of restriction that I am making up for now. During the summers I seem to dip down into the 120s, fall and winter 130-140. I stay active by running and riding my bike, and my job.

The fact that I may still grow only adds complexity to the situation, though the chances are waning that I will do so, it is definitely a possibility. I try to stay healthy now, of course I always want to be skinnier though. I don't eat junk food and watch sugar in particular.

What should I do? Does anyone have advice to offer?