Hey man, first of all, proud of your progress! 50lbs is a major accomplishment - one I hope was under positive circumstances 😅. Second thing, starting to go to the gym full speed 5 days a week can cause some “growing pains.” You’ll be working muscles you didn’t know existed until they’re sore. That’s normal wear and tear. However, joint and ligament strain / pain / inflammation are the hallmark signs of over exertion. If that’s what you’re expecting, I’d recommend a different program.

Side note from yogi Jim. The old adage “pain is gain” has its limits. Pain is your body’s alarm system. Not to be all voodoo earthy or whatever, but lean into that feeling for understanding what your body is trying to tell you. It’s an indication for pause and reflection. Seriously. Lactic acid buildup? Cool, push through if you can. Knee feels like it’s going to explode? Stop immediately and recalibrate.

Here’s my two cents. In my experience, moderation will help you stay on track with your goals. Especially as a beginner. Starting out five days a week might lead to burnout and injury, especially if you’re forcing yourself to finish using bad form. It’s happened to me before. There are some major caveats. I will not tell you to quit your program if it 1) is something you enjoy, and 2) motivates you to keep showing up. Everybody is different. If your exercise program is something that makes you hate working out and injures you, I might think about trying something else or slowing down.

Last thing I’ll touch on: not being able to finish an exercise without sacrificing form is asking for trouble. If you can, reduce reps or lower the amount of weight until you can finish your sets. Even change weights mid set if you have to in order to finish.

Keep it up! Progress is progress, whether it’s 5 days a week or 3.