What would be your symptoms if the dose of premarin (conjugated estrogens) is too high? experiencing dizziness, heart palpitations, restless sleep and tremors

See a medical doctor: the most common symptoms of excessive dose of premarin (conjugated estrogens) would be breast tenderness, nausea , abdomen pain, headache, flu like symptoms, back pain. The symptoms you describe are very serious & you should seek medical attention immediately. Premarin (conjugated estrogens) therapy can cause serious side effects with increased risk of stroke, Pulmonary embolus, deep vein thrombosis. See medical doctor right away

All of those: All of those are possible including breast tenderness or spotting if you have a uterus. If you have a uterus then you need to counterbalance the Premarin (conjugated estrogens) with Natural Progesterone (Prometrium) not Provera. I use Prometrium anyway to counter-act the Premarin (conjugated estrogens) even without the uterus as it is helpful for bone, brain and cardiovascular health. It is all a balancing act. I also do not use oral estrogen