Hi PriscillaMarie,Yes, this is characteristic with extensive use of any of the amphetamine class. Nomad is right, you need to *gradually* lower your usage, ensure you get enough sleep (difficult) and eat three square sensible meals per day.While you're doing that, I recommend using mobile reminders to force you to adopt your new routine, to use modafinil to enhance your concentration (I have an intuition it will also make it easier to ween yourself off too, it works with other drugs), that's 100 mg - 200 mg in the morning before 12 noon. In 1 month you'll be bright eyed and bushy tailed again. Don't procrastinate and ask VMM et al to cease supply even if you request it in the next 3 months.Tough love <3Pine