rest or fight?

When being sick, calling for prayer of the elders is the biblical way. I wonder about feeling sick or just weak. When to rest, when to force myself to get up and pray and praise G-d until being well and strengthened? It seems that the will and readyness to get up make the decision whether to rest or to get up. When the will is lacking, is that a sign of depression and do I need to call for prayer? Or is it just G-d's will for me to rest until the will to get up, pray, fight and praise returns?

Post to be continued, question in process ... Comments welcome!