Headache After Neck Lift and Blepharoplasty

Pains and aches after any procedure is a natural process and sometimes the cost of being beautiful. It is almost impossible to not have these after any procedure. The question is how painful it is and if it is causing you to be in a state where you can't function well on a daily basis. The stitch might need to be removed if it continues to cause you problems and can be done very easily.
The headaches are due to sutures pulling on your facial muscles and will get better. You might need some different medications to help you with your pain and transition. Sometimes the pain is due to nerves being caught and is rarely indicated to have a procedure to alleviate this nerve impingment. Muscle relaxants, anti inflammatories, Nerve relaxants can all help your situation and can be discussed with your doctor. Don't worry this will get better. Just be patient. Your doctor will hold your hand, so to speak, through this whole process.
Consulting a Board Certified Facial Plastic Surgeon would be something that I would recommend. We specialize in the face and are highly qualified to help you with this.

By 30 days after a facelift and blepharoplasty, you should feel fine and not have pain.
You need to be examined by your doctor and he/she needs to give you an explanation.
Two issues concern me.
First, the "swollen stitch in your jaw." If you have a stitch abscess it should be drained. Other possible cause could be a hematoma, which if 30 days old could be hard and firm. If it is red and inflamed a stitch abscess is more likely. In either case it needs to be addressed.
If deep sutures were used to tighten the SMAS or platysma muscle, sometimes these sutures can compress nerves behind the ear and cause ear and neck pain and radiated pain to the back of your head. Sometimes a suture called a Giampappa suture is used which can have this effect.
See your doctor and ask him to address these issues.
If you do not get answers then see another experienced board certified plastic surgeon.
I would also ask your primary doctor to refer you to a neurologist to work up your headaches. There may be another different explanation that needs attention.