Hi, I Have Been Having Spinning/Dizziness For About 3 Weeks

Hi, I have been having spinning/Dizziness for about 3 weeks now, I do get Vertigo, But this is happening when I sneeze, Cough Blow my nose, Moving around, even if I turn over at night, I do have High Blood Pressure and I take Lisinopril -HCTC 20-12.5 and Thyroid MedsSynthroid 125 MGS and Welchol for High Cholestrol 625 mgs 2/times per day, Could any of this be causing this to happen, Extremely Worried!!