Had vertigo symptoms for 3 months but now they think not vertigo at one morning with spinning and upset tummy which went on for 24 hrs but since then no spinning but feel weird just dizzy,giddy strange head nausea so tried various cyclizine that help but want a diagnosis so seeing my neurologist next dr has arranged blood tests,ECG and blood pressure monitor also 7 day ECG but sure the heart is racing just because I’m so scared I’m do take various other meds as have allergies and severe sinus I do have stomach trouble so take lansoprazole which I hear stop magnesium input but I’ve tried to stop them before but need them so can I still take them and magnesium and feel just ordered Dr best magnesium as so desperate to stop this awful feeling.
The test light is easy to use. First, let's look at how to test a positive circuit for voltage. The basic principle is illustrated in the photo above. You have a positive power source (in the case of the photo it's the battery) and you have a ground (any exposed metal that's bolted to the chassis). The test light is the go-between. If you connect one end to the positive power source and the other end to a good ground, it lights up. To test for positive voltage, attach one end to a known ground, and touch the other end to the wire you want to test. If it lights up, you're good.