For heartburns you can try and that baking soda with water, or you can add some apple cider vinegar to the water. Try it, especially the baking soda, it’s working.
I used to have the heartburns shortly after I start taking Levothyroxine. Now I take Synthroid and Armour and no more of these problems
I take levothyroxine and cytomel when I get up at 3:30 am. Then nothing to eat or drink for at least 30 min - 1 hour. Then breakfast (both protein and fiber), go to work, etc. About 9:30 am, I take my 2nd dose of cytomel and BP med.
I used to take Aciphex for GERD but have quit taking that due to cost (insurance won't cover). I found that I have bile reflux rather than acid and if I just lay off the coffee, and eat at regular intervals the reflux is much better.
I used to take the BP and Synthroid meds together, in the morning. Now I take the BP medication at night.
I take Prilosec for severe GERD and my doctor has told me to take it around 4pm or sometime at least an hour before eating dinner. I take my synthroid when I get up and usually have a high fiber breakfast one hour later. So far my labs are all stable. Not sure about the BP meds though as I don't take those. YET! I'm sure one more pill is just around the corner.....
Dont take BP meds at the same time as Synthroid.
I found that even taking paracetomol can upset the thyroxin balance and not absorb properly.
Hope that helps.