Maybe try some more coffee if you really feel the negative symptoms.
I myself have negative symptom days but rarely prolonged periods of them. More like I don’t really have them and then I wear myself out to where it creates them. Caffeine really helps me when I am like that.
I also find exercise like jogging to be a boost. Lifting is more tiring, calisthenics are more tiring, but jogging gives me a mood lift as well as some calm and focused energy.
Maybe swimming is wearing you out- swimming is hard!
**Could be from the shorter days.
Its easy to adjust to the time change when its spring, but falling back is hard, and we`re having a short lull until the holidays come roaring through.
Everyone seems to be hungrier than usual, wanting to sleep more… **