Mass murder, of course.
Not just random mass murder. There is a list.
I will start at the bottom and work my way up very quickly.
Very quickly.
Either that or...
Heroin.

The important thing to realize,is that all our times are very finite.
And the important question to ask is why we haven't been living like each month,or year,may be our last.

...seek a 2nd opinion from another doctor

I would quit my job and run away with my best friend/crush

I'd probably try to get a kiss from the hot frog woman and maybe some boob feel, because even if i'm horribly rejected, who cares, right?

A tour of Europe then go to bed. The two places that make me happy.

Sorry that you had bad news.

In your shoes I'd probably do things like skydiving. If your bad news wasn't an STI, then I'd say go enjoy a lot of sex.

Be yourself. And focus on all the good things in life.

Continue on like I do every other day that I haven't been hit by a bus, and let God worry about the rest.

Make a bucket list of everything you've ever wanted to do and spend time with the people you love. it's heartbreaking to see any person's life cut short and hearing such news must've been devastating..... I'd suggest counseling to process the news, grief and emotions and reaching out for support.