I started with sudden, severe symptoms in October while taking Doxycycline for dry eyes. Diagnosed with Raynaud’s in February. Rheumatologist trying to figure out if there is something else causing it. All tests so far have been negative, but she is still suspicious of inflammatory arthritis. Am taking Amlodypine (calcium channel blocker) which is helping to decrease the severity of symptoms. Has anyone heard of Raynaud’s being triggered by Doxycycline?