Greetings ! Welcome to the site. Well yes it was the abrupt increase in the dose of Adderall and taking an overdose of Adderall ( maximum safe dose recommended is 30 mg / day) that must have caused this state of yours because such a rapid increase in the dosage from 20 mg to 60 mg without systematic titration can lead to changes in the blood circulation and cause hypotension ( low blood pressure ) and even fainting attacks. This only explains your light headedness and face turning while due to lowered blood pressure. So please from next time onwards kindly be more vigilant about your dose schedule as such an indiscretion can lead to an unexpected emergency in the form of circulatory collapse and blackout. As for now I do not think you shall have to worry any more , so keep taking the regular dose of 20 mg / day , if at all you want to up the dose of Adderall then it has to be done under the guidance of your treating doctor and that too by increasing 10 mg every 1 week to a maximum dose of 30 mg / day. 60 mg of Adderall amounts to be an overdose which should be avoided at all times. I hope this helps. Regards..