She has been yelling for seemingly no reason, more aggressive and acting out it seems
It sounds like your dog is experiencing some challenges, particularly with the recent changes in her environment and her recent heat cycle.
Firstly, it's not uncommon for dogs to exhibit behavioral changes after their heat cycle. Hormonal fluctuations can lead to mood swings, increased vocalization, and changes in appetite.
Secondly, reuniting with another dog, especially a male, can also influence her behavior. She might be feeling a bit stressed or anxious about the change in her social environment.
Regarding her excessive barking and yelping, this could be due to anxiety or discomfort.
If she's showing signs of lethargy and loss of appetite, while these can be related to her recent heat and the stress of reuniting with the male dog, they can also indicate other health issues. Monitor her closely for any other symptoms such as vomiting, diarrhea, or changes in urination.
For now, try to keep her routine as consistent as possible and provide plenty of positive reinforcement when she exhibits calm behavior. If her symptoms persist or worsen, it would be wise to take her to a veterinarian to rule out any underlying health issues.
If you have any further questions, please feel free to ask. Thank you.
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