Any dog in heat can display multiple symptoms. Any change in behavior could very reasonably be related.
They can become tired, fatigued, andirritable. They also tend to be a bit more aggressive as well. Not unlike a human-being.
No, every dogs shed... but not when they're in heat ,because there are different reasons for that...
Because the heat makes your muscles relax and therefore makes you tired.
Heat for tired cold for swollen heat or cold for sore, let your gut tell you on that one.
The sun makes you tired with the heat
Any change in a recovering dog's progress (or lack of progress) needs to be reported to the vet.
same as you. they are tired of standing.
because they get tired.
Horses do because dogs get tired faster.
tired,bored,even when they are still sleeping and are waking up.
They were tired of feeding them.
They are tired
Very often dogs just flop down when they are tired and do not want to continue.