You can probably adjust the buttons with code; however, I suggest you remove a word or two from the description of the other 2 pages;
in the 2nd description you can change:
“Chronic fatigue, Chronic pain” -> “Chronic fatigue and pain”
“Colds and Flu” -> “Colds, Flu”
and 3rd description;
Change “About Karla Perentin” to “Karla Perentin BSc(Hons)” as you already have “about” in the button text below. Remove: “Karla Perentin BSc(Hons)” as you already have this in the title of the featured page above.
Also for 2nd description if the above doesn’t work you should change the order of the illnesses so that the amount of characters on each line are optimized, and almost certainly you can get them to line up.
Hopefully this helps.