I went off Adderall for a year (because I was living in an Asian country in which it's not available). I gained weight and didn't have the motivation to do anything. That's great you can get to the gym without it. Do you drink caffeine? I'm back in the U.S. now, back on it. It's gotten harder than ever to get. It helps me with my confidence, and I'm very much dependent on it -- the year-long break got me used to a lesser dosage, though. Kudos to you for getting off of it. It's not supposed to be good for us in the long-term.
I had to force myself to the gym at first. I also weaned myself down to 5mg per day instant release before quitting. I would break my 20 mg into 5's. At first you will feel tired and u think the gym will be hard but once u are actually in the gym your body will be more cooperative than you think.
The fatigue, depression, craving, foggy mind, does get pushed back significantly if you work out in the morning or when u begin your day. Cardio and weights. At least a half hour of make u sweat cardio or build up to a half hour as you can. Yes I drink caffeine, only a couple cups in the morning. I'm only almost 2 weeks off now and weirdly enough I'm more productive off it.
I did end up getting terribly depressed on adderall. I had difficulty thinking ahead much and lost sight of any future goals. I became anxiety ridden, isolated, fatigued, suicidal. I still deal with suicidal feelings off the adderall just not as intense. It did help my confidence but also numbed me out emotionally. I was first prescribed it at 25 when I went to a phsychiatrist for the first time over struggling at college.
I had no idea they were prescribing me a clean version of meth and it didn't take me long to get hooked even though I started dealing with the negative effects pretty early. That was the beginning of all my problems. Then I ended up on like 4 additional meds to cope with the Adderall side effects which I did come off when I realized that phsychiatry these days is mostly a sham.
I'm sure I'll have problems with employment in the future off Adderall but I realize my body can't tolerate it, so I'll have to just deal with whatever comes I guess. I will probably be more limited in what entry level jobs I can do off of it.