I can understand how distressing this has been for you especially when you are trying to rest but your mind keeps going back to past regrets and painful thoughts. From what you are describing, this does not seem like just a sleep problem. The pattern of persistent negative thinking, emotional heaviness, crying spells, and disturbed sleep suggests an underlying depressive episode with ruminative thoughts, rather than only anxiety.
In depression, it is very common for the mind to become overactive at night, repeatedly going over past decisions and self-blame, which then disrupts sleep. So the sleep issue is often a part of the condition, not the main problem.
Since you also have a
thyroid condition, it is important to recheck thyroid levels (
TSH, FT3, FT4), as imbalance can worsen mood and sleep.
The positive part is that this is treatable. With the right treatment, which may include medications and therapy focused on managing rumination, both your mood and sleep can improve significantly. You don’t have to continue feeling this way, and this phase can be reversed with proper care. I provide online consultation and therapy support. Please connect.