Nicotine? Too many bowls? Still a newbie?

I have retaken up pipes after a very long layoff. I started with a dozen or so pipes I smoked 45 years ago, and have added another bunch, mostly estates. By now I have cleaned up most of the crud I deposited back then, got rid of most scorch marks, sweetened almost all bowls, deep cleaning of mortises, etc.. When I bought years ago, I got mostly unfinished pipes, and a few mid quality finished ones. I smoked Burlington Arcade, a long ago discontinued sort of English blend, said to have Latakia and Perique, don't know if Virginias or Burleys were there - probably were, but couldn't guess the percentages. If it gave me trouble, I've forgotten it!
Now to date I have been dealing with a lot of variables— moisture content, small samples of tobacco, pipes new or foreign to me, including my own—and over the past month, smoking 3-8 bowls a day, using tobaccos found at my local pipe stores. But I decided to buy in bulk, and got a pound of Comoy's Cask 11, Pegasus, and Billy Budd. But I have no idea of the nicotine content, or if I am now sensitive to Latakia or Perique, or something else. I get occasional nausea, even when I think I am smoking carefully.
Are any or all of the above high in nicotine? I've searched but find no guidance on that. I am at sixes and sevens right now, as a small bowl put down for an hour and relit gassed me completely. I love smoking and now collecting, so I hope I might get some advice- or at least sympathy!

Sweeps clean! - Newbroom- Thanks. I did use the local reviewing site, nothing on Cask 11, a bit on Pegasus, and lots on Billy Budd, which I knew was strongest of the three, but no indication of nicotine strength. Also went to reddit site, only one review, rather dated, on Pegasus. General googling leaves me guessing at accuracy of opinions.
I have 4 oz of Budd, and 8 oz of Pegasus, and a pound of the Cask 11. I wonder if I should get something with lower punch in nicotine, but just don't know how to assess that.

Thanks, forest; I guessed/thought that's how they were in order, but I wonder if there is any source for actual nicotine punch? Strong taste is one thing, tongue bite another, but headaches and nausea is quite a different class of negative effects! I guess smoking less, and slower, is the way to go for now.

Ah, the dawning is nigh. Thank you all. It's a combination of a lot of little things which can add up to a big one.
This is the link to the article above. (I hope!)
[I used the URL injector above the reply box, but I have a problem in understanding how to get photos embedded.]