Congrats on the surgery and taking a huge step forward in improving your health!
Also, welcome to the post-op malaise phase of the process, haha! I was there a few months ago, and I think its a rite of passage to be like "What have I done?!!" somewhere in the first 6 weeks. It does get better gradually, but the first month is the roughest. You will be able to eat "normal" foods again soon. I think I was able to eat most things again around the 3 month mark (mostly excluding carbonated drinks and alcohol). Just take your time and listen to your body. Some things will fight back, and if they do, just wait 3-5 days before trying again. I had a lot of trouble with green veggies initially, but was able to handle them around week 6.
Also remember the weight loss pattern will resemble stairs and not a straight line. You'll have periods of weight loss, followed by a couple/few weeks of stalling and slight regain. This is just your body recalibrating itself after a large loss to ensure its safe to continue letting go of fat reserves, because it mistakenly thinks you're in a survival event and doesn't want you to starve to death. Just remember this is part of the process, and its not a failure. This really got me down initially and compounded that regret feeling, but after a long stall I'm making progress again.
Also, Cipro is very likely the culprit in making you feel sick. it's a very strong antibiotic, and good at its job, but the side effects can be harsh. I've developed some partial hearing loss because of it after years of taking it for recurring Diverticulitis. Ask your doctor if there is another antibiotic that can do the job, but with fewer side effects.
Good luck, and I wish you luck on your journey!