LSABR

I just joined this group and am so happy to find folks to talk to that know what I am going through! I have done extremely well with my weight loss up until now, however, for the last 2 weeks I have had these 2 pounds that keep appearing and disappearing every time I get on my scale. One day I will weigh 202 and the next day or so it will be 204, then back to 202 and back to 204. I'm so used to the presurgery me that would lose weight really well for a month or so and then all of a sudden, I would put it all back on. Am I doing something wrong? Is this normal? Have any of you had this happen? I'm taking in at least 1 protein shake a day, which is usually my breakfast. I eat bites of lunch, usually meat with a little veggie, same for dinner. I figure I'm not doing well on the protein, but honestly, I'm clueless how to count a few bites of meat even when I know the protein value. I try to guesstimate and I'm pretty sure I usually get in around 45 - 50 grams of protein a day.