Been told on here that you can have an ercp if you have had a billroth 2 procedure & gallbladder removed years ago. my dr today told me that i cant have one. should i get a second opinion as i may have stones in my ducts & liver test gtt is 3x high?

It can be done with some difficulty due to altered anatomy post Billroth II. Please read this article from PubMed - https://pubmed.ncbi.nlm.nih.gov/31187782/

Although it may be possible to do an ERCP in a patient with a Billroth II anastomosis, the procedure is much more difficult and often requires referral to a tertiary care center specializing in difficult ERCP. It may also be possible to access the biliary duct by interventional radiology techniques. A second opinion may be necessary to find an ERCPist willing to attempt this. Good luck.