Yes, your symptoms can definitely be side effects of your medications. Antidepressants and certain blood pressure drugs commonly cause dry mouth, throat dryness, and constipation. Additionally, an incorrect dose of thyroid medication or certain antidepressants can sometimes trigger anxiety. To manage this, stay well-hydrated, use sugar-free gum, and increase your dietary fiber. Please do not stop taking your medications. Instead, consult your doctor. They can perform a simple blood test to check your thyroid levels and consider adjusting your doses or switching you to alternative, gentler options to improve your comfort.