Dear Jared,
I understand your concern. Adderall is a stimulant and blurred vision mostly due to mydriasis (dilated pupils), headaches and strained feelings are all attributed to it. Use of an energy drink simultaneously worsened it and increase the likelihood of this adverse effect.
Stopping the medication will resolve the symptoms but if you need adderall for your ADHD, then talk to your doctor ASAP to shuffle the dosage and please avoid these lethal combinations of two stimulants you recently had in guise of an energy drink and adderall.
One more thing aside from this adderall adverse effect is considering losing some weight as 185 pounds at age of just 20 is morbid obesity.
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Take Care,
AskMDx Team.