1. how long did it take to notice benefits for you?
I was on 0.25 mg for 1.5 weeks and didn't notice anything, then raised to 0.5 mg and 1 week after that most ME symptoms started melting away fast.
2. Did you have the issue with weight gain?
Only the first few weeks did I get more hungry and likely have some minor weight gain, but then that normalized and went away and because I could do so much more I've actually lost weight since starting Abilify. Please note I'm taking around 0.65 mg / day now so this could be a factor why weight gain isn't an issue.
3. if you did have the issue with weight gain is their anyway to counteract this? Diabetes/obesity runs in my family so that is a concern on my mind as I’ve managed to stay somewhat normal weight in spite of not being able to exercise
Be patient and keep the dosage a low as possible to achieve efficacy. It takes 2 weeks at a dosage to determine how much it will improve symptoms, so ideally one would start really low, e.g. 0.25 mg, wait 2 weeks on that dosage, eval improvements (or not), if not enough go up by 0.25 to 0.5 mg, wait 2 weeks and eval improvements, and so on.
I've been on Abilify for 4 months as of yesterday and still have remained at only 0.65 mg, because it works really well for me at this dosage, the improvements are the same since they plateaued about 1 1/2 months in to it.
Also something very important is to not think that if you get great improvements at X dosage it will be even better at X + Y dosage, Abilify doesn't seem to work like that, especially in ME. If it's going to work for you each individual appears to have a "sweet spot" where the ratio of benefits to side effects are best and going any higher seems to not produce any more benefit but only increased risk of side effects.
Finally, IMHO who cares about a little weight gain ME is f---ing HORRIBLE! If the Supreme Being made a deal with me and said you would weigh 2x now but your ME would be totally gone I would take that deal without a second thought!