I noticed the past few days Hestia not enthusiastic to coming downstairs to take her medicine and treats at night. I've been fetching her and carrying her downstairs for her bedtime routine instead. Thought it odd but got more concerened as I noticed last night that she had a slight limp on her left front leg. Checked her paw and arm and can't seem to notice anything amiss. The limping is not very obvious if she's walking quickly but is very pronounced when she first gets up and/or is walking in a slow/relaxed fashion. Rang her vet and made an appt. for Monday but was advised to take her to the ER if she stops eating or moving altogether. I wonder what is going on with her now. Pretty concerned as she's my 15 year old with hyperthyroid and a heart arrythmia. I guess it could be anything from a sprain to arthritis or cancer or something to do with her health conditions. Anyone know any other things I should be watching for that would warrant a trip to the ER instead of waiting till her appt. on Monday? She seems to be eating fine. Just laying down more and seems to want to be next to the heater or in the sun.