I'm sorry to hear Maggie has been going through this. Absolutely, anaemia will result in lethargy and sleepiness and she likely feels like she has no energy at all. As anaemia can be caused by so many things in dogs, a very thorough work-up which will include general blood tests, clotting blood tests, urinalysis, faecal exam and imaging will usually be needed to get to the route cause of the issue. If this has not been done and if you do not know the specific reason for the anaemia, this should be done as soon as possible. It is very rare that a dog develops anaemia just because of an iron deficiency, especially if they are being fed a complete diet. Chronic internal blood loss would be a concern if her iron levels are low.
Depending on how low her haematocrit (red blood cell volume) is, it would be worth discussing a blood transfusion with your vet which should improve her demeanour.
With regards ***** ***** paw bleed, this is highly unlikely to be significant. Assuming Maggie weighs around 30kg, her normal blood volume would be around 2.5 litres (2,500mls) of blood. Two full tablespoons of blood is 10mls of blood so is not going to be missed.
However, with this recent bleed I would want to know if she is bleeding easily (a tendency to bleed can indicate a clotting issue) and if the wound is deep enough to require stitches or any medication such as antibiotics.
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