The salt in the ramen packet causing a new immediate increase in BP makes me wonder. Can BP be affected by a change in electrolytes? This would require a few lab tests to be done, sort of a baseline, then an immediate sample when the condition begins then another immediately after the recovery after the administration of the salt packet. Seeing a swing in electrolyte ranges of three samples may provide an important clue to the cause and also help figure out a method of drug/salts administration during treatments to prevent future episodes. Talk to your Dr again.The body is a marvelous electro-chemical machine that does respond to cause and effect. Careful testing is required to figure out the how's and why's without doing further damage.