Hello & welcome, I am Dr. B, a licensed veterinarian and I would like to help you today. I do apologize that your question was not answered before. Different experts come online at various times; I just came online, read about your situation, and wanted to help.
Again I do apologize that my colleagues could not aid you sooner. If you would still like assistance, can you tell me:
How old is Farook?
How long has he had these lameness signs?
Does he seem stiff when he first gets up or is first exercising?
Any appetite loss, belly pain, straining to pass stool, or nausea (ie drooling, grass eating, retching, etc)?
What dose of Aspirin did you give?