1)
Why did he say "v'Nafshi Nivhalu Me'od"?
1.
Radak: It is more confounded than my bones, amidst fear lest I die from this illness.
2.
Malbim: The matter reached the Nefesh (mortal danger) - until when will You not have grace on me?!
2)
What is the question "Ad Masai"?
1.
Rashi: How long will You see, and not heal?
2.
Radak: How long will You afflict me with illnesses, and not heal me?
3.
Malbim: Refer to 6:4:1:2.
