other than the domain issue, you definitely need some images on there. You might also want to use a different bg color
Don't use .co.cc domain name. If you choose .com , .org and other extension then is will be helpful for your site. I have also have health site. Check and follow how to design my site. My site is about woman's health related. See and reply.
your blog is simple but it's very nice blog. I would like to suggest that, use your own domain instead of co.cc
Yes, the template is not suitable and looks too shady. Choosing .tld is the best option, it's worth to have it and make your website/blog more professional. Your content are great, good job mate. If you use .tld and use more professional design/theme, it will be great. Good luck.