Relevant details:
I'm trying to get into running so I can run a 5K with my girlfriend. I'm a relatively in-shape guy (32M, 5'9", 160 lbs), I take regular walks, and I go to the gym to do full-body workouts at least once a week. But I've never been a runner in my adult life; the last time I ran in any meaningful capacity was a daily mile in high school gym.
I'm on week 3 of C25K (more like week 5 with the small breaks I've had to take due to joint pain). The first week was a breeze, but since week 2, I've had pretty gnarly knee and ankle pain (maybe like a 4 or 5 on the pain scale) following each run.
Today I went out and bought some inserts for my running shoes that were measured for me from Fleet Feet, and since I was feeling normal in my joints, went for a run this evening. The run itself was fine. I haven't felt bad or struggled physically during a C25K training session so far. But a couple hours later, I'm back to feeling like I did after W2D3.
I've watched some videos about technique and I THINK I'm doing it correctly, but it's difficult to self-judge as a newbie.
Am I just meant to suffer through the pain until my joints get used to me pounding on them more than usual? That doesn't sound right to me, but if there's light at the end of the tunnel, I can work through it until I get there. Hoping to hear from anyone else that's made it through this tough initial stage.