There are very few downsides I've noticed to getting stronger, but I definitely miss the feeling when I first started and every dumbbell I would ever use for my working sets always felt "light" in the sense that I never felt fear of the dumbbell, I never had problems maneuvering it, racking or unracking it, walking it to the bench etc..
But now when I pick up the 55lb or 60lb dumbbells, I feel a significant and unsettling hint of angst/dread because they are noticeably too big to carry around effortlessly. I genuinely enjoy going to the gym and I'm always in a happy mood but the 55lb & heavier dumbbells act sorta like a buzz-kill, especially if I do fewer reps then expected or have an off-day, essentially creating a negative feedback loop where my angst/dread is "reinforced" as valid (which it's not valid, there should never be any dread/angst from selecting appropriate dumbbells from the rack).
Is there a mental form cue or reframing trick I can use to spin that apprehensive emotion into a positive one? If there are no shortcuts, then what muscles do I need to strengthen in order to make the 55lb & heavier dumbbells feel light/effortless like the 20lb dumbbells felt when I first began lifting? I improved my PR yesterday by 1 rep but I couldn't properly enjoy it because of the slightly unsettling vibe that larger dumbbells give me. Lastly, the problem is getting worse lately due to the self-reinforcing nature described earlier so I'd really prefer to nip this problem while it's still in the bud. 💪
In some ways, heavy weights stay heavy. After all, dropping a 20 lb dumbbell on your foot still hurts even if it doesn't feel like any weight while you lift it. And a loaded barbell is going to flex and bend when you have enough weight on it. Same with safety bars catching 500 lbs instead of 100 lbs.
But in a lot of other ways, getting stronger helps certain weights feel lighter. For that, it's helpful to just have full body strength across lots of different angle/planes/axes. Certain exercises are great for that: suitcase carry, farmer's carry, deadlifts, sleds, ropes, Turkish getups, other one sided or asymmetrical exercises. As you move up in weight for those, you'll find that moving weights to set up or return weights after exercise just get easier.
But still, don't smush your toes. That still hurts, no matter how strong you get.
Thanks for explicitly mentioning this! It jogged a memory of a stupid habit where after I finish my 3rd rep on heavy shoulder dumbbell presses, I lazily "slam" the dumbbells onto my legs (habitually) because they are rubber and the 40's and 45's don't hurt when I do that. But the 55lb & 60lb dumbbells actually hurt significantly compared to the 45's and the 55/60's leave bruises because I'm so focused on slow eccentric that I mentally "clock out" and just drop the weights onto my lap before racking them and exhale a victory sigh. It reminds me of the death 10 months ago of an extremely reputed climber 23yo Balin Miller who finished his dangerous climb of El-Capitan but died 5 minutes later while descending 20 feet to retrieve his chalk bag because he forgot to tie off his belay during a TikTok livestream. In other words, he declared the feat "completed/finished" in his mind before it actually was.
I believe you helped me solve the mystery and in fact, the fear/dread is my brain reminding me not to do that with the 55lb & 60lb dumbbells... 🤦♂️ This also aligns with the "unable to properly celebrate improving my PR by adding another rep" mentioned in the OP because that's actually where I recently noticed the negative emotion most acutely and I felt robbed of the wave/rush of happiness/excitement you get from besting your PR on your favorite lift.