I also had lots of tearing. I am now three years out from the start of this and do not remember tearing from the beginning, but 2-3 months into this and for about a year and a half to two years later, I would have tears just roll down my face whenever I was really tired. It was not emotional. I still have it happen sometimes, again when I am really tired, but not so much, maybe only every other month or less. It is kind of hard to explain to others; I would tell people I was not crying, just having water come from my eyes. I do not think that it was compensatory for eye dryness. I also still have frequent times in which my eyes fill with tears, but they do not happen long enough for the tears to run down my cheeks and be noticable.
The only things that helped were rest and tissues and time. I tried hydrating drops on the theory that it was a dry eye problem and these did nothing for me.
WithHope for a cure of these diseases

I am so glad that you are able to cry about your wife. I find crying to be very therapeutic, as it tends to actually relax my body. I cannot even begin to imagine what you are going through, like you my husband has been my soulmate since I was 18, 35 years ago. But I am the one with severe CIDP & the precarious health, so your posts give me the will to keep fighting to remain as helthy as I can be, as I know my husband would be just like you if something did happen to me…