I was really sick with a cold/flu yesterday. Today when I woke up, it felt like I had been asleep for weeks. And aside from that, my arm was cold. It was almost difficult to move, very clumsy. I immediately went into a panic, "my arm is being paralyzed". I've settled down a little but my arm still feels really foreign to me. Holding my hands is almost like holding someone else's hand. Is this anxiety or is there something seriously wrong...?