My capable, kind, fun nurses daily give me medicine (yum...not!). I have a choice of whether or not to say thank you; most opt out of taking the energy and time to say "you're welcome" when I do thank them. One comes to mind for her good-mannered ways! She, of course, usually does.
I have a choice of whether or not to verbalize my gratitude, don't I? And when I do, I often feel more grateful, present in the moment, and it often catalyzes a more positive experience overall.
We get a biblical model of this kind of exemplary thankfulness from someone named Hannah, the wife of a man named Elkanah, who can be found in the book of 1 Samuel. In earnest prayer, she requested a son, and the Lord answered her request positively. She named the boy Samuel, which means "Asked of God."
"In Hannah's prayer, God is presented as one who helps the weak." https://www.gotquestions.org/life-Hannah.html
In taking strong medication to stay/feel well, I have felt like somewhat of a weakling, since I never took medicine much (thankfully!) prior to my car accident. However, I have come to the realization that I must take my "dreaded yuckers" (medicine!) in order to get stronger and healthier. Therefore, I can give thanks to Jehovah-Jireh for His provision - just like Hannah could with that baby! Very different situations, yes, but similar heart motivations for prayer!
Now, many of us are not in my exact situation of choosing whether or not to say "thank-you" to nurses for "yuckers." But, you know what? I'll bet (more like, I hope!) not a day goes by that someone else doesn't do something nice for you or a loved one that would elicit a simple "thank you." Try it!