Hi Kjdjmom and welcome. I was trying to fix a problem with my DH's desktop computer the other day and if I had to set in a desk chair I would not be on here as much as I am. I have a laptop and sit on the couch with it at eye level.
I have a lot of soreness from the neck to waist and old lower back injury so I do not do well in a lot of chairs. My sternum has been sore for about a year now and I know what you mean about the ribs under your breast. I also have sore spots on the sides of my breast.
You really need to take lots of breaks from the computer and do some stretches. I know that is hard when time is money.
Lidoderm patches are great for rib pain.
luv and hugs
Forum Moderator Fibromyalgia
Fibro,Sjogrens, Anxiety, Gastroparesis, IBS, Gastritis, Allergies, High Blood Pressure, Low Blood Sodium and Osteoarthritis
Amitriptyline, Celexa, Xanax, Synthroid, Zyrtec, Micardis, Spironalactone, Tylenol, Reglan, Lidoderm Patches and Tramadol
Co Q 10, Super B Complex, Extra B12, Multi vitamin