I’ve been on meds for about 6 months now and definitely noticed the same thing with Ritalin. My moods were very up and down all the time, especially in the afternoons. I tried adjusting the amounts I was taking, and even having smaller amounts, but more often (same total dosage). In the end I changed to Concerta, as it’s a slow release tablet that you take in the morning and forget about it. I think it works much better. It might be worth asking your doc
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