Hi Lisa and welcome to the RA site
First Do Not think it is in your Head you have a Positive ANA so you have Some sort of Auto immune thing going on
and Yes you can have sero Neg RA as the Rheumatoid Factor can be Pos or Neg usually your esr will be elevated when there is inflammation
I have always had a very High RF and even with that it took years for them to agree on a diagnosis and even today I get "well its Auto immune and its RA with other things " So Don't be disheartened Just Keep Pushing Go to Different specialists for 2nd or 3rd opinions
Keep a Journal/Diary of your symptoms and if possible get copies of your blood results so you can say - look Monday my blood result was this and my symptoms were this.
Also when you keep your diary make it to the point day/date/time symptom and Take it with you to your Doctor visit Take it to the Specialists
I also had a Bad reaction to plaquenil had me in Hospital and ill for Months same with Humira
So Another Tip keep a Diary of any New Medications and keep a watch on your blood results also How You Feel and get on to any issues early Basically You be in Control Try to not be intimidated Remember its Your Body and You Know How You Feel .
FORUM MODERATOR Rheumatoid Arthritis for 30Yrs. Asthma,Fibromyalgia,Osteoperosis,Cervical Spondalosos,Degenerative Disc Disese,Disc Bulges, Diabetes,Heart SVT & AF, Sleep apnoea,Nocturnal Respiratory Failure,Panic Attacks,Anxiety
on; Methotrexate , Arava , Endone, Targin 20mg (oxycontin) , Prednisone, Metforman(Diabex) , Tambocor. Oxygen & Cpap, Prolia Injection ,Lyrica