Sometimes I get ill for a week or 2 and I don't know how to handle it.

Say I've got a girl's number and I get ill before our first meet up. It's not too hard to be honest, but when I'm not well 3 days later, I get the impression they start to think I'm lying. Even if they don't think so, it's unattractive to have bad health and 2 weeks is a long time between contact.

Also, if they don't contact me for a few days, should I write a further message saying 'yep still ill' or does it sound like I want sympathy? Should I reassure I'm not making excuses or playing games?