What was your TSH level? Were your biologically active thyroid hormones, Free T4 and Free T3, tested? If so what were the results and reference ranges shown on the lab report? How long were you on the 88 mcg of T4 med before you started having those symptoms?
Please clarify when you started having those symptoms. Was it before or after the dosage change?
Thyroid med dosage should be based on elimination of hypo symptoms.
TSH should not be used to determine thyroid med dosage because TSH frequently becomes suppressed when taking thyroid med. That does not mean hyperthyroidism unless there are attendant hyper symptoms due to excessive levels of Free T4 and Free T3. So you should always make sure to be tested for both Free T4 and Free T3 each time you go in for tests. Note that Free T4 and Free T3 are not the same as Total T4 and Total T3.
Also there are other variables that can affect the response to thyroid hormone. So you need to also test for cortisol, Vitamin D, B12 and ferritin. If you can get all these tests done, then post results here and we will be happy to help interpret and advise further.
Suppressed TSH does not mean you’re over medicated. When on medication, TSH should be suppressed. Only high levels of FT3 and FT4 would mean you’re overmedicated or results in the upper 1/4 of range combined with over medicated symptoms.
You need complete labwork to make this determination. For correct assessment, these labs are ran together: TSH, FT3, FT4. Any one of these by themselves is inconclusive. Do you have Hashimoto’s? What are your TPO and TG results?