If you did not follow my suggestion and read Chapter 11 first then you would have missed what I said was obvious and undeniable.
Check this out:
24Of the Jews five times received I forty
stripes save one.
25Thrice was I beaten with rods, once was I stoned, thrice I suffered shipwreck, a night and a day I have been in the deep;
26In journeyings often,
in perils of waters,
in perils of robbers,
in perils by
mine own countrymen,
in perils by the heathen,
in perils in the city,
in perils in the wilderness,
in perils in the sea,
in perils among false brethren;
27In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.
28Beside those things that are without, that which cometh upon me daily, the care of all the churches.
29Who is weak, and I am
not weak? who is offended, and I burn not?
30If I must needs glory, I will glory of the things which concern mine
infirmities.
(Remember there were no chapter divisions in Paul's original Letter so you want to keep his train of thought as you continue.)
1It is not expedient for me doubtless to glory. I will come to visions and revelations of the Lord.
2I knew a man in Christ above fourteen years ago, (whether in the body, I cannot tell; or whether out of the body, I cannot tell: God knoweth
such an one caught up to the third heaven.
3And I knew such a man, (whether in the body, or out of the body, I cannot tell: God knoweth
4How that he was caught up into paradise, and heard unspeakable words, which it is not lawful for a man to utter.
5Of such an one will I glory: yet of myself I will not glory, but in mine
infirmities.
Now don't you think that Paul was talking about the same thing in verse 5 as he was in verse 30? I think it is the most natural interpretation to think that Paul intended the reader to understand that "mine infirmities" was the same kind. There were Jewish Pharisees that followed him where ever he went and stirred up persecution. That is probably what he was talking about.
As to whether Paul ever got sick he probably did.