Hi HelpWithPois,
Thanks for your question. The racing heartbeat is probably due
histamine or nor
adrenaline (
norepinephrine). Both of these produce a fight-or-flight response. It may be that your elevated histamine is due to an allergy. Have you tried getting a skin prick allergy test from doctor/allergist? If you have a skin prick test then you can identify allergens that may be causing your elevated histamine levels, like pet fur or mold.
Image from
https://www.naughtylittlemastcells.com/infographics/ Intermittent Fasting (caloric restriction) has been proven to reduce the number of histamine releasing immune (mast, basophil, macrophage,...) cells in the body, increase natural T killer cells, and reduce allergen senstivity (Ref,
Ref2). Fasting has even been shown to eliminate some autoimmune diseases. If you don't like fasting you can try a commercial fast-mimicking-diet (
FMD) like
Prolon. Prolon is a commercial product developed at the University of Southern California and funded by the Nation Institute of Health (NIH). So it is based on real science and clinical trials(
Refs). I think that FMD are the best diets for POIS.
Figure 2 from "Nutrition and fasting mimicking diets in the prevention and treatment of autoimmune diseases and immunosenescence". This figure shows one case where a caloric-restriction or fast-mimicking-diet (FMD) resets the immune system and heals damage done by immune inflammation. Here is more information on how to do a FMD (
Five day FMD).
Sublingual vitamin D3, thiamine B1 and insulin are all negative regulators of histamine levels and the H1-hitamine receptor (diabetics have high histamine levels). In my opinion, sublingual vitamin D3 is a must for any stack because D3 is one of the bodies natural hormone regulators of the immune system. A vitamin D deficiency leads to chronic
inflammation and allergies in everyone.
Sublingual D3 is more bio-available than the pills. The pill form of D3 was not as effective for me.
Even if elevated histamine levels are caused by something other than POIS, this histamine can still make your POIS problems worse by stimulating the H1-histamine receptor. (1)
Diet, (2)
adequate sleep, (3)
drinking water and (4)
vitamin D levels are
more important than stacking supplements. But once those 4 things are taken care of, then supplements can offer benefit.
TMG (betaine) is a good methyl donor if you want to save money from buying alpha-GPC. Herbal based supplements like (ashwaganda, tumeric, quercetin) can be helpful, but they do not work as prepacks because their bioavailability is too low (see
Cost effective alternatives for omega-3). The only effect that herbs (and flavonoids) have in the short-term is hormonal (they
stimulate progesterone, estrogen and testosterone receptors). To get the full benefit from herbal supplements, you have to take them daily to allow them to build up to therapeutic levels. Also,
Curcumin is a MAO inhibitor which may interact with your antidepressant medications. I get my curcumin and quercetin from my diet (food only), which has been shown to have higher bioavailability and lower toxicity than the commercial pills. Adequate sleep is needed to strengthen the immune system so that it can fight whatever is causing POIS. Vitamin C (2g taken twice daily) can also strengthen the immune system and lower histamine levels (
Ref).
From what I can tell COX inhibitors are the most successful drugs to prevent POIS symptoms, but they each have their side-effect. Indomethacin (50mg) or aspirin (500mg) should be taken about 90 minutes before the start of sexual activity (see
Betaherpesvirinae stack and
vasoconstrictor notes in the
original post). Celebrex (celecoxib) does not have the pharmakinetics to be taken as a prepack. Celecoxib has to be taken at 200mg twice a day with food for at least 5 days before you will see any noticable anti-inflammatory effect from it. So celecoxib is a long-term medication with no short-term benefits. With that said, celecoxib is the safest COX inhibitor that you can buy. I don't take pharmaceutical drugs. But for those that don't want to stick to a diet,
several POISers find that COX inhibitors are an effective alternative for reducing POIS symptoms.
I know I crammed a lot of information in this post, but I hope some of this is helpful.