What causes sinus pressure, swelling jaw, tingling, and a headache after a crown was placed over a bone graft implant?

Its a good sign that you don't have any pain when you touch around the implant.  More often than not, ear pain is related to a TMJ issue.  A properly designed splint (commonly called a night guard) can often help in developing a proper diagnosis.  Many TMJ problems are...

Bleeding gums are usually a sign of gum disease and inflammation.  Teeth that have been treated with root canal therapy can cause pain if they become re-infected.  You should consult with your dentist about your concerns or perhaps get a second opinion.  

It's usually recommended to wait 3-5 days after dental surgery to begin smoking to prevent delayed healing and/or a dry socket in extraction sites.