Yes, I can think of two instances when that happened. The first was around freshman year when I had first fully accepted that I was gay. All of a sudden I became very afraid to go on. I thought things about how I should pretend to be straight and live a lie for the rest of my life. Part of me wanted to quit while I was ahead. The idea of being gay later in life terrified me and I did not want it. It meant that I was never going to be normal and that I was never going to be like everyone else. I am glad I stopped thinking like that because my attitude toward that has changed completely. A complete reversal. Now, I want to live my life as a gay man and despite the threat of discrimination/hatred, it doesn’t terrify me. Having a boyfriend has made it even better.
The other time was last September when college started and I was struck with that extreme homesickness. It was the same feeling. I was at college, my life was never going to be the same. I no longer lived with my parents, I wasn’t a kid anymore, I would have to find a career, everything was different and it happened all at once. That was extremely overwhelming for me and I was terrified for a while. Luckily, after the homesickness began to pass and I realized that I don’t have to know exactly what I’m doing yet (and knowing that everyone my age and all my friends are in the same boat), I stopped feeling that way and now, it’s something to look forward to.