In life in everything we all have to do our Hishtadlus. But as an example when it comes to sickness if a gadol hador C”V became sick and he didn’t go to the doctor he would not be called as not doing his Hishtadlus due to the fact that on his high level of kedusha and faith etc… He doesn’t just know that only Hashem can heal him but on such a high level the medicine and doctor is like Avoda Zara to him. And such a tzaddik 80 levels higher then us physical people still living a life of physical pleasure and running after our desires and pleasures etc….. Is almost already with Hashem in the Olam Haemes.
May we all work on ourselves to become tzaddikim who turn directly to Hashem for help in anything we need from speedy recovery from sickness to livelihood to blessed children etc…..