I have a question regarding my atypical response to stimulants. I have been diagnosed with ADHD. The last two years I have been severely depressed and anhedonic. Before the depression, stimulant response was typical with increased energy etc. But now I get tired when using a stimulant like vyvanse or concerta. The stronger the stimulant, the more tired I get. Even caffeine produces tiredness. I´m not talking about the calm state a stimulant is supposed to produce when given to an ADHD individual. I get really tired, my heart rate slows way down and I have to lay down to sleep. My hands become cold and I just feel extremely bad.
What could that be ?