I have a dull ache in my left arm between my shoulder and elbow. also it appears my ring finger below the fingernail is crooked. arthritis & not hrt?

Left arm pain: Left arm pain can be a sign of atypical cardiac issues. If you have any risk factors for heart disease, I would seek the opinion of your primary care physician, rather than ignore it.

Varies: There are a number of possibilities. An irritation of the C7 nerve root in the neck can cause pain in a similar distribution, as can tendinitis of the triceps tendon. You are right in that cardiac problems can cause left shoulder pain. A check Up with your medical doctor can be a good first step.