Worrying isn't bad thing. If somebody worries about you, it's nothing to be afraid of. You don't have to apologize for "making someone worry about you". People worry about you on their freewill, you aren't forcing them to do anything, and therefore you aren't doing anything wrong, so why should you apologize for it? Nobody would want to live in the world where no one is worried about others. Worrying = caring, and if someone cares about you, you should be happy about it, not trying to hide from it. Don't be afraid to tell something that makes you feel down to someone, because you think he/she would get "too worried". There's no such thing as "too worried". Everybody chooses themselves who and how much they worry and care.
If nobody would have been worried about me about a year ago, I wouldn't be here writing this blog. When people get worried about you, it just means they would want to help, if they can. Everybody chooses themselves how much they worry, you don't have to be afraid that you make someone feel down. If someone cares about you, and gets worried, it's their own choice, at least usually. Most of people can see themselves when there's too much sh*t to handle for them, and they can stop themselves for worrying too much. It's not your job to choose who cares and worries about you, and how much they do.
If nobody would have been worried about me about a year ago, I wouldn't be here writing this blog. When people get worried about you, it just means they would want to help, if they can. Everybody chooses themselves how much they worry, you don't have to be afraid that you make someone feel down. If someone cares about you, and gets worried, it's their own choice, at least usually. Most of people can see themselves when there's too much sh*t to handle for them, and they can stop themselves for worrying too much. It's not your job to choose who cares and worries about you, and how much they do.