My body doesn’t seem to be cooperating with my business goals

Thanks to SCS, I’ve re-engaged in my coaching business while holding my F/T job and really getting momentum back with setting impossible goals and getting into action with my 25 epic fails.
As a result, I’ve taken more action in my business in the last 2 months than I have in the last 18 months.
The actions have not yet resulted in a booming business but I knew it was going to take some time and I haven’t let that bother me.
What’s happening now that’s really frustrating me is that I’m getting sick. I got a really bad flu in early February that sidelined me for 2 weeks. I even had to take sick days from work, the flu completely drained me.
And now, I’m getting another one already, just 3 weeks after getting over the last one!
What gives? I’m trying to understand what’s going on, is my body trying to tell me something? I don’t feel like I’ve over stretched myself with my business activities, I feel like I’ve balanced the work well with my F/T job.
So why am I getting sick? I rarely get sick, am super healthy normally and get enough sleep.
I need help please figuring out what’s going on and how to continue to move my business forward.