No, not weird at all. PhD's are pain, but certain people like the pain. If you're good with handling stress, and also OK with working in a fast-paced, high-impact environment (for real, not business talk BS), then it may be the right decision for you. The biggest thing that I would say is that you should really, really think about whether this is what you want, since once you start a PhD, you've locked the next 6 years of your life into it with no chance of getting out

Edit: Also, you need to have a highly sensitive red-flag radar. As a graduate student, you are highly susceptible to abuse from your professor. There is no recourse for abuse. The only way to avoid abuse is by not picking an abusive professor from the get-go. Which is hard, since professors obviously would never talk badly about themselves. Train that red-flag radar, since you'll need to really read between every word and line to figure out if a professor is right for you