SheaLuv

Fair warning, this post is part rant about period but also, I'm genuinely looking for advice / suggestions.
First of all, can I just say I hate it that as a woman who's trying to lose weight (in my case, at least), I only get 2 good weeks out of every month where my body and my weight loss can be quite predictable and reliable. I hate it that even if I can find the motivation to get my weight loss momentum going psychologically, physically my body can only sustain that momentum for 2 weeks before PMS hits and everything goes haywire that makes it very hard to stay on top of things.
I am currently in the middle of one of my worst PMS weeks ever especially when it comes to weight loss. It's the kind that induces fatigue, bloating, constipation, and cravings, so it's a quadruple whammy. A week ago when the PMS set in, I was knocked out for 2 days due to the fatigue, which was unusually extreme. And I have been very constipated and bloated ever since, the kind that even laxatives don't help as much (I've been taking the maximum allowable daily dose of senna every day since the constipation set in and I only have one bowel movement every other day). On top of that, my appetite has increased and I just want to cry every night because of how much I want to eat even though I've already met my daily caloric goals.
It has been very discouraging because it throws my exercise and diet for a loop, not to mention all the bloating and constipation make you feel fat as hell. And the most frustrating part is, it seems like there is nothing you can do to ensure that your next cycle will be a good one. You just have to roll with the punches and ride it.
I'm sure many women can attest to this but you'll never know what kind of PMS you'll get each month. PMS and period can be very arbitrary. I've had months where my PMS was literally non-existent and the period was a breeze, and there were months where the PMS set in a full week and a half before the period with a vengeance, and for the life of me, I can't seem to see any correlation between my PMS and my eating habits / lifestyle choices.
I've been doing a lot of research and I know all this is due to hormonal changes but none of the articles says anything about how to prevent / at least keep the hormonal changes in check so your PMS won't cause much disturbance.
Anybody has any advice? Please help, this is horrible.

OK, I'm home, after my surgery yesterday (10/3). The medical staff all said I seemed good to go home, and I wasn't going to argue, but I'll be real: getting my 64 ounces tomorrow looks like an insurmountable struggle.
I nearly hurled after the car ride and the walk up stairs, but happily I did not.
Also, they really wanted me to do shots in my stomach, even though I definitely warned the surgeon I wasn't going to be able to do that, so I have to walk extra to make up for not having any blood thinner. It's a little scary.