Skin tags are usually normal and harmless unless maybe they're causing pain, then you can have them removed. I had some skin tags before but had them removed by a doctor (Colin Tham) but mostly because of aesthetic purposes.
Hi @adlinzul!
You may try my ortho Dr Lim Lian Arn of Alpha Joints & Orthopaedics Pte Ltd at Gleneagles Medical Centre. How is your shoulder and back pain now?