About 7-10 yrs ago my semen changed from normal white to yellow. Is there anything I should be worried about? Is this normal? Is there anything I can do homeopathically?

Im 31, caucasian and in good health.
I have no other problems. Erections fine, sperm count good, healthy sex life with no issues. Conceived two children with this condition.
During my late teen years and early 20's I took 4 courses of Accutane, which is a serious Acne drug. Here is a piece I copied from a website stating the side effects of accutane.

"Now Accutane has been linked to an increased occurrence of Inflammatory Bowel Disease (IBD), Crohn's Disease, Ulcerative Colitis, Irratable Bowel Syndrome (IBS) Musculoskeletal Disorders, Multiple Sclerosis, Diabetes, Hepatitis, Hepatotoxicity, Liver Damage, Kidney Damage, Birth Defects, Fetal Death, and Lupus."

Ever since I stopped the fourth dose my urine has had a very bad smell to it and is very dark yellow (unless I have drank alot of fluids). I think the semen may have changed colour somewhere around this time but I cant be exact as to when. The Doctors used to do blood work before prescribing Accutane. Im not sure if they were testing my liver or my kidneys. Well the last course I was taking they said that my levels were nearing the danger zone and this would be the last course I would be able to take.

I would be very grateful if someone here could possibly start a conversation with me to find a solution to this.
Thank you kindly.