We have a female cat six to seven years old. Just tonight she is not able to stand up. She falls over. She appears to be breathing okay and alert. Her right eye has evidence of drainage but isn't draining right now. She will meow but doesn't seem to be in pain. We are able to hold her and console her for a little while. She is sitting up but seems to always be moving her paws. She doesn't seem to have a temperature. She will focus and is alert. She has trouble standing on all fours. We don't know what to do for her. Any suggestions or guidance is appreciated.