Am I losing weight too fast?

I'll go bold here: I think you're probably losing too fast, unless your medical team is telling you that fast loss is an urgent priority for your health, and they're monitoring you frequently for any issues arising from the fast loss (via blood tests, exams).

If you've been averaging almost 5 pounds a week loss for six weeks, and are now at BMI 32.9 (class 1 obese, but the line between overweight and obese is 30), that's very fast loss. Your actual weight loss rate is the best gauge of your calorie needs (once you have enough data to evaluate, which you do). Calculators (like MFP) only estimate.

I lost too fast for a while by accident (MFP underestimates my calorie needs materially). I felt great and not hungry . . . until I suddenly didn't. It was like hitting a wall. I got weak and fatigued, took multiple weeks to recover even after increasing eating to a sensible level, and was lucky that nothing worse happened (other than maybe a little hair thinning a few weeks later, since that's one of some effects that can be time-delayed).

At BMI 32.9, you do have more stored-fat resources, but there still significant health risks.

You've been eating 2100 (or less), and losing 4.7 pounds a week averaged over 6 weeks. That implies that your actual deficit is about 2350 daily, and your maintenance calories (with the exercise in the picture) are more like 4450 (or more, depending on how much under 2100 you've eaten).

Whether that number comes out that way because you've been lowballing the 2100 by quite a lot, or because of the high exercise levels, or because you underestimate your intake, or something else . . . the weight loss rate alone suggests that your actual deficit is around 2350.

If you're feeling too full when you eat more, add calorie dense foods. High-fat items are a good way to do that, unless you find those super-sating. Use more oil when you cook your omelet (avocado oil or olive oil are good choices for MUFA/PUFA), put some cheese on the omelet, eat nut butters or avocado, use a little more dressing on salads and make it a higher-calorie one, add nuts or seeds to foods, etc. Once you've dialed in your protein, healthy fats, diverse veggies/fruits for micros and fiber, it's also fine to eat some less filling, less nutrient-dense treat foods, like chocolate (good antioxidants, especially in dark chocolate), baked goods, higher-calorie fruits, candy, etc.

Fast weight loss is risky. In addition to the risks kshama noted, you can be losing unnecessarily much lean mass alongside fat loss (and that's slow/hard to rebuild), plus some studies suggest it can potentially impair immune response to viruses. Anecdotally, some who pursue fast loss seem to have a hunger/cravings snap back effect at some point, where hunger sensations increase a lot (might be mitigated by periodic maintenance breaks during loss).

It's just my opinion, but I'd encourage you to slow the bus down now, to something under 1% of body weight per week, and maybe slower than that once you're dropping out of the obese BMI zone (a bit under 250 pounds at 6'4").

Yeah, I'm a concerned old granny type, probably old enough to be your granny, or at least old auntie. Which reminds me: Even at 5'5", 125 pounds, age 65, I'd maintain my weight, maybe even lose super, super slowly, at your 2100 calories. Admittedly, I'm mysteriously a good li'l ol' calorie burner for my demographic, but it still makes me think you can eat much more than 2100 and still lose at a sensible rate.

Best wishes, sincerely!