You don't have to worry about sharing your medical condition with the insurance company - they'll be able to see your medical history, when you sign the application - it gives them permission to search. The insurance companies share medical history with the M.I.B. (Medical Information Bureau) when you apply for life insurance.
If something comes up in the search, that you failed to disclose on the application, they'll probably flat out deny you coverage for lying on the life insurance application.
However, you can compare life insurance rates and plans online to get an idea of which companies may offer you life insurance at competitive rates.
In addition, there are life insurance carriers that offer term life insurance with no exam. In fact, you may qualify to buy up to $500,000 of life insurance with no exam, no blood test and no urine test.