Patient : In the last months, I was really unable to focus on something like studying. I could not finish a task. Everytime I do a task, I feel really really bored that I wanted to switch to other task or go to other places. It was really awkward because I knew what I was doing--that I was just wasting my time that I wanted to focus but i cannot. but there were times that I was like very alert mentally..and when i am memorizing, sometimes i find it hard to memorize and sometimes i can quickly memorize..I don't know what's happening to me. Is this an ADHD? or vitamin deficiency?
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