If you have heart problems and you have a high awareness lucid dream, would you be more likely to experience higher blood pressure and have a heart attack due to the vividness and emotional content of the dream, or the surprise of realising that it is a dream? Would it be safe to continue lucid dreaming?

I don't have heart problems now but my doctor has told me my blood pressure and cholesterol levels are slightly higher than normal. I am eating healthy and exercising more to deal with this.