A positive ANA would run in the family especially since you have relatives with autoimmune disorders.A positive ANA may occur normally and need not translate into connective tissue disease.The fact that you have first degree relative with Raynaud's Disease means you need to be extra vigilant for symptoms of connective tissue disease(your Rheumatologist told you as much).Recurrent colds may occur due to encountering newer virus strains against which he body has no resistance,or there may be a element of allergic naso-rhinitis.Stomach ache may occur secondary to a viral infection like following a cold..The aspect of reduced immunity for you due to connective tissue trait,or other causes of reduced immunity like Thyroid disease or Diabetes needs to be examined.Environmental allergy or allergen induced rhinitis due to common allergens like dust mites,mold and animal dander also needs to be investigated and excluded.Increased stress levels also affect the immune system.Frequent washing of hands,avoiding contact or keeping a distance from people affected by colds may help.
Thank you for that response. I did not realize that, as you wrote, stomach ache may occur secondary to a viral infection like following a cold. Can you explain why that is the case? How does a virus that causes a cold cause a stomachache, too?
You also wrote: "The aspect of reduced immunity for you due to connective tissue trait,or other causes of reduced immunity like Thyroid disease or Diabetes needs to be examined." Do you think I should go back to see the rheumatologist due to the many colds I have had in the past few months? I am so scared. I feel like there is no other explanation for all these colds other than an autoimmune disease.
Last: do you know, at least anecdotally, if this winter season has indeed been worse than usual for viruses?
Thank you again.