You are very welcome. We want to help any way we can.
Please take a look at this list of symptoms and see how many, if any , you have.
Mental and psychological ailments such as depression
Faintness and dizziness
Weakness and fatigue
Heart palpitations
Emotional hypersensitivity
Inability to cope with stress
Social anxiety
Muscle weakness
Headache, scalp ache, or general body ache
Severe or dull lower back pain
Extremely sensitive skin
Nausea, diarrhea, and vomiting
Abdominal pain and hunger pain despite an empty stomach
Extreme craving for salty foods
Anxiety and jitters
Clumsiness and confusion
Motion sickness
Insomnia and dark circles under the eyes
Low bladder capacity and symptoms of IBS
Irregular or non-existent menstrual period
With your reaction I know you are convinced that the problems are solely the result of the Levo and Synthroid. There are additional sites that link T4 meds to numerous symptoms, mostly due to excessive dosage, some due to even taking small dosages. As another possibility for the problems you have, there are several things you should consider. First is that the small starting dose of T4 med is not additive to serum levels.
It actually just substitutes for natural thyroid hormone, because when starting on thyroid med, the body reacts by reducing the level of TSH, and thus decreasing the stimulation of the thyroid gland and reducing the output of natural thyroid hormone. Since serum levels are the sum of both natural thyroid and thyroid med, the net effect is usually little or no increase in serum T4 levels. So many patients find that their symptoms get no better and some actually get worse when starting on a small dose of thyroid med. Only when the T4 dosage is high enough to essentially suppress TSH, will further increases in the T4 med start to raise your serum levels, and relieve hypo symptoms. So what were your levels of Free T4 and Free T3 from before and after taking the 25 mcg of T4?
Next thing to consider is that there are a couple of variables that can significantly affect the reaction to thyroid med. Low cortisol level is one and low ferritin (iron) is another. In fact, although typically not even tested, it is recommended that any cortisol issue be corrected before starting on thyroid med. Have you been tested for either of those, and if so, what were the results and reference ranges shown on the lab report?
One other thing. In the link you provided it mentions adjusting T4 med according to TSH level. That alone raises an alarm for me about the knowledge of the authors of the link. Thyroid med dosage should never be adjusted based on TSH. It should be adjusted as needed to relieve hypothyroid symptoms, irrespective of TSH levels. If you want to confirm what I have said here, please click on my name and then scroll down to my journal and read the one page summary of a paper on Diagnosis and Treatment of Hypothyroidism: A Patient's Perspective.