I am your mother.
After about 2-3 hours of waking up without food the hunger goes away, especially if you work out during that time. It's only when you eat something for breakfast, no matter how little, that your stomach starts growling at lunch time. I sometimes drink coffee and always lots of water, and I smoke a shitload during the day, but it's never really that hard.
Also, I took a break towards the end of last year, ate kinda shitty, not overeating but getting too little protein, drank a lot. I weighed myself two weeks ago and lost about 10lbs, about 185 to 175. I look thinner but fucking went from 2 plates 2 reps bench to 185 3 reps, like what the fucking fuck. Lost about the same amount on squat. I read that it's easier to get back gains than to get them the first time, I've been eating right and working hard the past week but my bench is still the same. Feels so shitty watching the weak little azn kids at my gym repping the same weight as me. Do I stick with the same low rep high set stuff or go for more hypertrophy? Expected losses but didn't expect this severely.
You have to think of your deadlift as one smooth motion. If you're good morning them it's probably because you shoot your hips up too early, focus on having hips and back rise at the same time. Or you're just too horizontal in your starting position? If you mean shoulders drop as in rounded upper back, it's probably upper back strength you need to work on.
Regarding health benefits of fasting I'm pretty sure you can achieve some/most of the health benefits from having a day every now and then where you eat close to no carbs. Can't find the study right now, though.
Video would obv help, but its likely a combination of weak quads and glutes and improperly learned technique.
Lower the weights on both lifts until the technique is solid, that is, no change in torso angle in the squat when coming up from the hole, and chest and hips rising at equal speed in the deadlift. Progress slowly from that new weight.
You might want to add some accessory work to correct for the muscles that are thought to be weak. Lunges (preferably backwards), bulgarian split squats and deep front squats hit the quads and glutes well at the same time.