I believe that hormonal imbalances like hypothyroidism are an important potential cause of your symptoms
Other possibilities include dysthymia and mild depression
Ohter hormonal causes like PCOD etc.
Or even something as simple as a lack of quality sleep
related to the childbirth
I would recommend a medical evaluation with testing for low hemoglobin (anemia) and evaluation for the other possibilities that I have mentioned above
and taking it from there
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