Loki could see his brother looked worried . He knew maybe shouting for help wasn't the best way to keep his brother calm. He though had wanted to make sure his brother would hear him, 
"I'm fine brother, I just need help walking again."
The god was waiting for his brother to help him.

Really Loki was afriad he would fall over if he moved, he didn't want to attempt walking encase something went wrong. The god knew Thor would only worry if he got hurt.
Though he was sure once he got better and got some strength back that he would be ok. He wasn't sure. The god of mischief did look very ill though. He still coughed a few times.
His throat felt all dry and sore. He had been hit bad with what ever illness he had.

"Can I go lay out on the couch?" He wanted to be out with Tony and Thor and didn't want to be laying in bed. He was getting bored of being shut up in the room away from everybody. He knew he was rather ill still.
But he hoped he was ok enough to handle being out there. He wasn't sure if any strong smells would set off his stomach. But he seemed to think he could eat so was sure he would be ok.