Determining Nicotine in Blends

Some years ago, I never would have considered myself a nicotine wuss. I could smoke the toughest stuff on the planet (and did) and not feel a thing (well, I admit to a buzz or two).
I have even smoked a raw leaf of tobacco straight from the tobacco barn. I did turn a bit green on that one, but that’s about it.
A few years ago, life changed for me. I tried SG’s 1792 flake. It just about killed me. I was really surprised. I just never thought of a pipe tobacco that I couldn’t smoke. Until then.
Last night, I was finishing off a tin of Peterson’s 3Ps. I’ve smoked it before. No problem.

I smoked the first third of the bowl. Put down the pipe when I got busy, and then picked it up after the dinner meal. Tacos, doncha know!
I suppose that I puffed too hard or something (again, not a problem in the past). And then all of a sudden, I was ill. Sweating like a stuck pig. I had to lie down. I drank a bunch of water and that saved my bacon, if you get my drift.
Here is my question: In all the years I have been smoking a pipe, I don’t recall ever seeing the Nic content on a tin, pouch or bag.
How does one know how much nicotine is in said tin, pouch or bag?
I have read what I could find on PM Forum, including Kevin’s fine piece on nicotine and sugars and another web site on the chemistry in tobacco.
I am wondering, though, is there a way to immediately say, well that tin is loaded with Vitamin N. I know because it is a Va/Bur/Per blend, or it is a Va/Per blend or a Va/Per/Cav blend, etc.
Sometimes, even reading a review, I’m not sure that I know all of the tin’s tobacco ingredients.
You can bet after reading Kevin’s piece I will take a better look in the future.
But, in the name of helping a brother of the briar I am just wondering if some of you fellows know the amounts of N in a particular blend, tin, pouch or bag from experience.
And if so, could you list them.
I think I have become a serious Vitamin N wuss. Maybe even worse than a wuss, a. . . well, ah, I will leave it at that.
Thanks for any advice as to which blends, tins, pouches or bags to steer clear of now.
I also think this is a product of aging and getting less time to smoke my pipe than I did in my youth, when it was a constant companion.

Thanks, guys. I will have to pay attention to the "mild," "medium" and "full" recommendations from this point on, or so it seems.
I'm like Kashmir: I wish there was a nic-o-meter on the side of the tins or pouches. It would be helpful.
I am still struggling with the thought that some pipe tobaccos are beyond my tolerance now. I love burley and have smoked fields of it. I love Virginia and done my part to eradicate the leaf from the planet. I am not crazy about perique, but have smoked it in blends of Virginia. Cavendishes have never been a problem.
I suppose this is a way for the aging body to say it is time to slow things down. I won't go easy into that good night.

Ciderguy: I, too, don't want more regs. We got enough already.
I would like to recalibrate as they say: I'll just read the reviews and see if I can get it right and stay away from the dark fired stuff, which is a shame. I love strong tobacco, but seems that I can't smoke it as I age.
Again, thanks for pointing me in the right direction.

MSO: At one time in my life, I had what I called the "Iron Skillet Stomach." I could eat anything, especially raw oysters. Ate them by the dozen. Fish, crabmeat, shrimp, it all went down my gullet.
Of course, that was in my golden youth. I was invincible. Those days, I smoked whatever I wanted with no queasiness at all.
Today, I become ill at the smell of a fish product. It just happened. I have to stay away from those foods today, or it's not a pretty scene.
I will have to mind what I'm smoking now, it seems. Time is the great leveler.

Sean: I'm worried about ODF. I ordered it thinking I would love it. Read a review or two and just skipped right over the strength ratings.
As for Jack Knife: well, I gave it a whirl. It spun me around like a top. I put it in the cellar and will think long and hard before testing again. If there is a next time, I will go slow and easy.

Pipe Novelist: 1792 put me to bed. Sweating like I had been doused with a fire hose. I wish I had. I wanted to die. I did hurl and hurl and hurl.
I won't be going there ever again!