Hello I share your concern Looking at your history this could be any of following thromboangitans obliterens or burgers disease Raynauds disease Paresthesia due to nutriental deficiency Cervical rib in my opinion you should consult your GP/ General surgeon for examination and investigations to look for nerve impingement and nutritional assessment If you smoke then there are very high possibility for buergers disease avoid smoking and alcohol multivitamins supplements like vitamin B 12 hope this helps you best wishes