Yes there is a connection between thyroid issues and BP. There can also be connection between kidney cancer and BP issues... I was put on Lisinopril years ago, and it is an ACE inhibitor. Mayo discovered 2 tumors on my left kidney, which may have been caused by the Lisinopril (inconclusive, but possible). While still in the hospital recuperating from partial nephrectomy, nurses continued my BP med, UNTIL 1 night they could not wake me up... my BP had dropped to 60/30!! I no longer am on any BP meds and my kidneys are functioning great.
Id recommend looking into side effects of NSAIDs and ACE inhibitors...long-term they can both be WICKED.