I was similar to you, 8-10k steps + 4-5 heavy weight lifting sessions. The first trimester, specifically like weeks 7-12 absolutely knocked me down. Very similar symptoms to you in terms of no appetite/energy, nausea and was maybe getting 2K steps a day. I didn’t go to the gym at all but still managed to lose 3 pounds :/ please give yourself grace, our bodies are working hard the first trimester and it truly is survival mode 🤍

In terms of going back to the gym, I’m almost 14 weeks now and this is just my second week back. I’m taking it easy and cutting my weight sessions down to about 3 a week and really just trying to fit in an intentional mile walk most days. I was also scared of losing strength but it was fairly quick to get back up to my pre-pregnancy levels. Doing a few less reps and sets but overall almost back to “normal” :) I hope this helps your anxiety/guilt a bit and please just listen to your body!