So... I had strep this weekend and was projectile vomiting and then had penicillin injected into my butt.. How long should I wait before I start training again? I feel lazy ... but maybe I actually feel tired from being sick...
You could return to training by repeating your last deload week (you are doing them right?). Continue from there.Use that as a gauge to see how you feel. Only do the prescribed reps for the first week back to training and no extras. Do no accessory work for the first couple of workouts and after that return to accessory work depending on how you feel but be smart about it. Keep the main lifts the priority (as they should always be). You should be back in full swing soon enough.
As for when to start... if you are asking the question already then why not give a deload workout a try tomorrow or the next day? And go for a nice walk today.