Hello, sorry about he delay in answering your question. Inner thigh pain and groin pain are common with varicose veins. Also, calf pain is included in that. Please see your doctor if you have not already. Let us know if you have seen them and what they have said.
Here is an older question about this answered by a MedHelp doctor https://www.medhelp.org/posts/Blood-Disorders/Varicose-veins---inner-thigh-pain-/show/2027668
Here is some basic information on the condition as a whole. https://www.webmd.com/skin-problems-and-treatments/understanding-varicose-veins-basics