I was almost 6 weeks into my last routine gaining strength until I got sick. I stayed away from the gym for about 3 weeks and then tried starting up an HST routine. After less than 2 weeks doing whacked 15 rep sets, I got sick again! I just spent the whole weekend sleeping trying to get over it. I can tell I've lost mass and strength. Bummer... Can't wait to get back into it this week though.