What weakens the immune system? I eat tons of fruits & veggies now that I'm vegan, I recently started exercising again, & I drink tons of water yet I've been consistently sick for about 2 months now. I NEVER get sick & now I'm sick like I have a disease that weakens my immune system. I'd expect me to be healthier than ever right now but this is happening. I just started working at a daycare but do caregivers & babysitters STAY sick? I find it hard to believe that people who work with small children STAY sick. Like this is so unusual for me to still be sick like this guys! And I'm definitely not pregnant! 100% certain of it