Hi and welcome! Five days sober is great, you are almost through that first week. I agree seeing a doctor is a good idea. I know it is scary, but I think the anxiety of worrying about what is wrong can make things even scarier. Once you go to the doctor if there is something wrong you will be able to make plans to address the problem.
This is a wonderful site, with lots of support. Check out the December class, you will find others who have also committed or recommitted to sobriety this month. Also, the 24 hour thread is a great place to check in for the next 24 hours, and make connections with some amazing people.
I'm attaching links to both of those, and also a link about surviving the holidays, and one that Dee always shares about plans.
December Class 2017
https://www.soberrecovery.com/forums...ad-pt-1-a.html
Link about Recovery Plans
https://www.soberrecovery.com/forums...ery-plans.html (Psst...wanna know why I'm always recommending recovery plans?)
24 Hour Thread
https://www.soberrecovery.com/forums...art-321-a.html (24 Hour Recovery Connection Part 321)
What is a Recovery Plan
https://www.soberrecovery.com/forums...very-plan.html (What exactly is a recovery plan?)
Holiday Survival Guide
https://www.soberrecovery.com/forums...ers-2-0-a.html (Thanksgiving and Xmas Survival Guide vers 2.0)