tired on vacation

So I am so thankful to be in nyc for my upcoming birthday but I am so tired! I am not able to do everything that I would like to do and I feel as if I am holding my two friends back although they are great if not annoying about it. I think that I have been asked if I am alright ten times this morning. It is very disappointing to be in this city I have never before been to and I am lying in bed in my hotel room. I go see my oncologist after I go home next week. Hope everything is ok.