Freaking out a bit. My breathing feels labored. I was out of breath walking the dog up a small hill. I never usually get out of breath when walking up that hill. Now my HA is telling me I've damaged my heart. Was out of breath walking up steps to my floor in my block. Literally just got rid of HA with the lump in my mouth and now I'm worrying over the heart again. Doctor has no immediate appointments in surgery but having a phone consultation at 2 and likely some antibiotics.

Do you think if I didn't walk to and from the vets I wouldn't be in this situation? Is it actually possible that it worsened things?