try and down as many mrps as you can in a day.
even if you loose your gains, once you get back into training regularly and your diet is dialed in, you'll get some of it back in no time. obviously you won't keep everything, even with the best pct.
Just try and get as much sleep as you can for the next 2 weeks and if you can't keep your calorie intake up, stay out of the gym.
it seems counter intuitive, but you'll loose gains faster if you push it while calorie restricted.