Can you help me?

This is really important and I need all the help I can get. My brother is very sick and he doctors dont know whats wrong with him. He lost feeling in his arms and legs, and we found a lump on one side of his chest. Please help me. He's having trouble doing things on his own such as eating. I think he got bit by a tick but im not too sure. Please help me.
Can you help me?
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