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You are correct in that you need a good attorney promptly. (Given the amount of money that is in dispute (or about to be in dispute) this is a case that requires legal counsel).
The way in which your settlement is structured is likely going to determine whether or how your settlement is going to be divided in any dissolution proceeding.
Oftentimes it is possible to show that pain and suffering damages are not marital property, but rather separate property (as these damages are designed to compensate the individual that actually suffered the injury, as opposed to marital property - as we often see with the lost income portion of the settlement which is more commonly divided).
But speaking with a good local attorney should be your first priority. I would recommend contacting a couple of attorneys, speak with them, decide which you feel most comfortable with, and then retain that one. This is likely to be a long term dispute and a long term professional relationship, so interview multiple attorneys, then hire one that you feel most comfortable with.
You can find local attorneys using the State and local Bar Association directories, or private directories such as www.AVVO.com; www.FindLaw.com; or www.Martindale.com (I personally find www.AVVO.com to be the most user friendly - although when using AVVO, it is sometimes necessary to visit the attorney's direct website and contact them that way rather than using the AVVO email link (unfortunately attorneys get a lot of phishing emails), and phone calls are always best).